Display Alert if Word not found on web page - javascript

I'm trying to find a way to display a pop-up alert if the customer did not select installation while checking out their product. So on the checkout page, if it doesn't say the word "Install" on it - is it possible to display a nice alert popup that says something like "Are you sure you don't want installation?".
I found a script that I don't really know how to edit and I would like to only display the alert on the checkout page, and I don't have access to add code to just the checkout page, only the global script file.
Snippet of code:
window.onload = function() {
// If the body element of the page contains 'one hour turnaround' then trigger an alert
if (document.body.innerHTML.toString().indexOf('one hour turnaround') > -1) {
alert("You have a ONE HOUR TURNAROUND order");
}
};
<div class="form-group ">
<label class="control-label" for="input-option90049">
<div style="font-size: 1.7em;border: 1px solid #e6db55; background-color: #FFFFE0; padding: 10px;"><i class="fa fa-wrench faa-wrench animated fa-2x" aria-hidden="true"></i> Would you like Professional Installation?</div>
</label>
<select name="option[90049]" id="input-option90049" class="form-control" data-toggle-option-select="true">
<option value=""> --- Please Select --- </option>
<option value="179975">Yes - I need installation (+$95.00)</option>
<option value="179976">No - I do not need installation</option>
</select>
</div>
<script type="text/javascript">
window.onload = function() {
// If the body element of the page contains 'one hour turnaround' then trigger an alert
if (document.body.innerHTML.toString().indexOf('one hour turnaround') > -1) {
alert("You have a ONE HOUR TURNAROUND order");
}
};
</script>
This is my HTML to the form on the product page to select if you would want installation or not...
<div class="form-group ">
<label class="control-label" for="input-option90049">
<div style="font-size: 1.7em;border: 1px solid #e6db55; background-color: #FFFFE0; padding: 10px;"><i class="fa fa-wrench faa-wrench animated fa-2x" aria-hidden="true"></i> Would you like Professional Installation?</div>
</label>
<select name="option[90049]" id="input-option90049" class="form-control" data-toggle-option-select="true">
<option value=""> --- Please Select --- </option>
<option value="179975">Yes - I need installation (+$95.00)</option>
<option value="179976">No - I do not need installation</option>
</select>
</div>

This does not directly answer the question but given the actual use, I would suggest a verification - which can be triggered on load or select change. Here is a very simplistic example.
I added a more standard way of doing a validation and triggered that when the page loads/script runs.
function validateInstallation(event) {
let installSelect = this;
let optIndex = installSelect.selectedIndex
let installSelectedValue = installSelect.options[optIndex].value;
console.log("Value:", installSelectedValue, "Index:", optIndex);
/* this could be in a validation message etc. also */
if (optIndex == 0 || installSelectedValue == "") {
console.log("Please select an installation option");
} else {
console.log("Selected:", installSelectedValue);
}
}
let optionSelector = '#input-option90049';
let installOptionElem = document.querySelector(optionSelector);
// add a selectyionchange event listener and trigger that when we load
installOptionElem.addEventListener('change', validateInstallation);
const event = new Event('change');
installOptionElem.dispatchEvent(event);
<div class="form-group ">
<label class="control-label" for="input-option90049">
<div style="font-size: 1.7em;border: 1px solid #e6db55; background-color: #FFFFE0; padding: 10px;"><i class="fa fa-wrench faa-wrench animated fa-2x" aria-hidden="true"></i> Would you like Professional Installation?</div>
</label>
<select name="option[90049]" id="input-option90049" class="form-control" data-toggle-option-select="true">
<option value=""> --- Please Select --- </option>
<option value="179975">Yes - I need installation (+$95.00)</option>
<option value="179976">No - I do not need installation</option>
</select>
</div>

Related

Set focus on input using javascript or css on text input that is hidden until user selects an option

I am editing an existing form with inputs that are hidden until the user clicks on an option, and then text input will appear. I need to get that specific text input to have active focus once that happens. I would love to do this with CSS because I am not great with javascript, but here is a portion of that code:
if ($("#frmSubmittedValue").val() == '') {
return false;
}
if ($("#frmSubmittedValue").val() == 'Individual')
$("#personSubmittedByValue").val('');
if ($("#frmProjectSub").val() == 0) {
return false;
}
Any help is greatly appreciated!
Who's afraid of some javascript? I've thrown in a little extra method select()
function show_it() {
document.querySelector("#f16").style.display = "block";
}
function focus_it() {
document.querySelector("#f16").focus();
}
function select_it() {
document.querySelector("#f16").select();
}
<button onclick="show_it(); focus_it(); select_it();">click</button>
<input id="f16" type="text" value="untitled" style="display:none">
You can set focus with jQuery using the code below:
$( "#other" ).click(function() {
$( "#target" ).focus();
});
There's a simple form example on the jQuery site here.
As for making the element visible, start off having the element you don't want shown to be display: none and has aria-hidden="true" (so screen-readers avoid) and a tabIndex="-1" (so the user can't tab to it). Then, using an if condition, set the properties to display: block, aria-hidden="false" and tabIndex="0".
I've put together a rough form with a few different input types. It's not perfect, but should give the general idea.
function makeMeVisible(id) {
$(id).parent().removeClass('hidden').attr('aria-hidden', 'false').attr('tabIndex', '0');
}
function makeMeVanish(id) {
$(id).parent().addClass('hidden').attr('aria-hidden', 'true').attr('tabIndex', '-1')
}
/* Select the first input and listen out for when it gets clicked */
$('#itemOne').on('click', function() {
/* If we are checked, run the makeMeVisible function and set focus to the next element we want shown */
if( $(this).is(':checked') ) {
makeMeVisible('#itemTwo');
$('#itemTwo').focus();
} else {
/* If we're not, make the item vanish and set the focus back to the original element */
makeMeVanish('#itemTwo');
$('#itemOne').focus();
}
})
/* Select elements need to listen for a change. When changes, get the selected option */
$('#itemTwo').on('change', function() {
/* Change what we do next based on what is chosen (looking at the value property) */
switch($('#itemTwo option:selected').val()) {
case "Value 1" :
makeMeVanish('#itemFive');
makeMeVisible('#itemFour');
$('#itemFour').focus();
break;
case "Value 2" :
makeMeVanish('#itemFour');
makeMeVisible('#itemFive');
$('#itemFive').focus();
break;
default:
/* If nothing is chosen, hide both */
makeMeVanish('#itemFour');
makeMeVanish('#itemFive');
}
})
.form-item + .form-item {
margin-top: 1rem;
}
.form-item {
display: block;
}
.hidden {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form>
<div class="form-item"><label><input type="checkbox" id="itemOne">Item one</label></div>
<div class="form-item hidden" aria-hidden="true" tabIndex="-1">
<label for="itemTwo">Item two</label>
<select name="option" id="itemTwo">
<option>Select</option>
<option value="Value 1">Option one</option>
<option value="Value 2">Option two</option>
</select>
</div>
<div class="form-item hidden" aria-hidden="true" tabIndex="-1">
<label for="itemThree">Item three</label>
<input type="text" id="itemThree">
</div>
<div class="form-item hidden" aria-hidden="true" tabIndex="-1">
<label for="itemFour">Item four (Option one)</label>
<input type="text" id="itemFour">
</div>
<div class="form-item hidden" aria-hidden="true" tabIndex="-1">
<label for="itemFive">Item five (Option two)</label>
<input type="text" id="itemFive">
</div>
</form>

Need to advice applying .disabled in Javascript

I run Woocommerce website and want to disable a specific input on the checkout page.
Woocommerce can set shipping method by country.
I have the default country set as S,Korea, and the shipping options for Korea are displayed.
However, where if i select US, Shipping method will see shipping options according to the US.
So, Shipping method of US is not displayed by default.
And it will only be displayed if visitor select "US" as the shipping country.
Here I want to disable the input field that is only displayed when the shipping country is US.
I can hide this input field using CSS, or even get rid of it.
However, the reason I want to disable it is that the post office is temporarily paralyzed due to Corona.
I want to inform visitor that the shipping method is not only express shipping, there is also free shipping, but it is temporarily unavailable.
My website structure is as follows.
Default (S.korea)
<td data-title="shipping">
<ul id="shipping_method" class="shipping__list woocommerce-shipping-methods>
<li class="shipping_list_item">
<input id="shipping_method_0_free_shipping1">
<label class="shipping_list_label" for="shipping_method_0_free_shipping1">
</li>
</ul>
<td>
If choose shipping country as US
<td data-title="shipping">
<ul id="shipping_method" class="shipping__list woocommerce-shipping-methods>
<li class="shipping_list_item">
<input type="radio" id="shipping_method_0_free_shipping3"> <--- want to disable this
<label class="shipping_list_label" for="shipping_method_0_free_shipping3">
</li>
<li class="shipping_list_item">
<input type="radio" id="shipping_method_0_flat_rate2"
<label class="shipping_list_label" for="shipping_method_0_flat_rate2">
</li>
</ul>
</td>
Country selector
<span class="woocommerce-input-wrapper">
<select name="billing_country">
<option value>Select Country</option>
<option value="US">US</option>
<option value="KR" selected="selected">Korea</option>
<option value="CA">Canada</option>
</select>
And I tried the javascript below.
<script>
const target = document.querySelector('#shipping_method > li:nth-child(1)');
target.disabled = true;
</script>
<script>
const target = document.querySelector('#shipping_method_0_free_shipping3');
target.disabled = true;
</script>
but these code not work.
I'd like to get some advice on which part I should check.
Try this (Updated Answer)
<input id="name" type="text"/>
const myInput = document.getElementById("name")
const inputDisabled = true
if (inputDisabled) {
myInput.setAttribute("disabled", "disabled");
} else {
myInput.removeAttribute("disabled");
}
You can try to do it with css styling, place your inputs inside a div and give the div a disabled class, all you have to do is to assign the disabled class to the div via java script
div.disabled {
opacity: 0.6;
pointer-events: none;
}
html
<div id="#mydiv"> <input name="input-1"/></div>
//jquery code
$("#mydiv").addClass("disabled");
//javascript code
document.getElementById("#myDiv").classList.add('disabled');

Change Add to Cart text on hover

Is it possible to change the Add to cart button in Woocommerce to "Select size", for example, if a customer has yet to choose an (required) option. Then, change it back to "add to cart" once the option is selected?
The Website of manolo blahnik has this feature, and I find it's a good UX for customers. On their website, the first stage is "Add to cart".
If someone hovers over the button, but hasn't chosen their option, it displays "Please select a size".
But if someone has choosen an option, it stays as "Add to cart".
On Mobile, because there is no hover like on pc, it always shows "Please select a size" until the option is chosen, then it changes to "Add to cart".
I'm wondering if it is possible to do this with woocommerce.
You can use mouseover and mouseout event handlers on the Add to cart button. The following code snippet demonstrates the functionality.
On mouseover of the button, the values of the required form fields are checked and the button text and title are amended using the data-warn attribute of the form field.
On mouseout the button text and title are reset using the content of the data-title attribute on the button.
// handle to button
var addToCartBtn = document.getElementById('add-to-cart-button');
// 'mouseover' event handler
addToCartBtn.addEventListener('mouseover', function(event) {
// get all form elements
var inputs = this.form.elements;
for (var i = 0; i < inputs.length; i++) {
// find the first empty required field
if (inputs[i].required && inputs[i].value == '') {
// set the button's mouse over text
event.target.title = inputs[i].dataset.warn;
// set the button's text
event.target.innerHTML = inputs[i].dataset.warn;
break;
}
}
});
// 'mouseout' event handler
addToCartBtn.addEventListener('mouseout', function(event) {
event.target.innerHTML = event.target.dataset.title;
event.target.title = event.target.dataset.title;
});
.form-field {
margin: 20px;
}
#add-to-cart-button {
font-size: 18px;
width: 200px;
height: 50px;
}
<form action="#" name="add-to-cart-form">
<div class="form-field">
<label>
<span>Select Size:</span>
<select name="item-size" data-warn="Please choose a size" required>
<option value="">Choose a size</option>
<option value="s">Small</option>
<option value="m">Medium</option>
<option value="l">Large</option>
</select>
</label>
</div>
<div class="form-field">
<label>
<span>Select Colour:</span>
<select name="item-colour" data-warn="Please choose a colour" required>
<option value="">Choose a colour</option>
<option value="red">Red</option>
<option value="green">Green</option>
<option value="blue">Blue</option>
</select>
</label>
</div>
<div class="form-field">
<button type="submit" name="add-to-cart-button" id="add-to-cart-button" title="Add to Basket" data-title="Add to Cart">Add to Basket</button>
</div>
</form>
Yes, it is possible to change the text on hover. You could do something like this;
#cart-btn {
width: 200px;
background: #000;
color: #fff;
}
#cart-btn:after{
content:'ADD TO BAG';
}
#cart-btn:hover:after{
content:'PLEASE SELECT SIZE';
}
<button id="cart-btn" type="button"></button>
This is just the CSS part of how you can get the result
.textSwap::before {
content: "Add to Cart";
}
.textSwap:hover::before {
content: "Please Select";
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet"/>
<style>
.textSwap
{
min-width:200px;
}
.textSwap::before {
content: "Add to Cart";
}
.textSwap:hover::before {
content: "Please Select";
}
</style>
<button type="button" class="btn btn-secondary btn-lg textSwap"></button>

Hide virtual keyboard after selecting value on Select2 v3

I'm using select2 v.3.4.5 solely for my project. Currently, when viewing on mobile, the keyboard does not close after it open and value selected, I would like to close it thought. I would like open only when user focus on it and type something.
$(document).ready(function() {
$('#Salutation,#Gender').select2()
.on('change select-open', function(e) {
setTimeout(function() {
$('.select2-input').blur();
}, 500);
});
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.4.5/select2.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.4.5/select2.min.js"></script>
<div class="container">
<div class="row">
<div class="col-xs-4 col-xs-offset-4">
<h3>Application Form</h3>
<form class="form" action="/action_page.php">
<div class="form-group">
<label for="GivenName">Given Name:</label>
<input class="form-control" type="text" id="GivenName">
</div>
<div class="form-group">
<label for="Surname">Surname:</label>
<input class="form-control" type="text" id="Surname">
</div>
<div class="form-group">
<label for="Salutation">Salutation:</label>
<select class="" name="" id="Salutation">
<option value="Mrs">Mrs</option>
<option value="Mr">Mr</option>
<option value="Miss">Miss</option>
</select>
</div>
<div class="form-group">
<label for="Gender">Gender:</label>
<select class="" name="" id="Gender">
<option value="Female">Female</option>
<option value="Male">Male</option>
<option value="Transgender">Transgender</option>
</select>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
</div>
As this js
$('#Salutation,#Gender').select2()
.on('change select2-open',function(e){
setTimeout(function(){
$('.select2-input').blur();
}, 500);
});
I set input-search box to blur already but keyboard does not close.
How can I do to archive this purpose? Please kindly help. Thanks.
PS: Understandably, select2 v4 fixed this bug, yet I could not upgrade my select2 version since my project is solely depend on v3.*
Ensuring the search box does not autofocus
There is no way to do this well in Select2 - whenever you try to call the blur() function on this input, it just refocuses it.
However, by listening on the open event, we can replace the search box with our own one, that does not autofocus. Only the currently active search box has the class select2-focused, so we use that to find it, and then create a new search box (with the same select2-input class so it retains the same look and feel), and then re-implement the search feature ourselves, finally inserting that into the DOM, and removing the old search box.
Not showing the keyboard after closing the selection popup
Select2 seems to try and implement its own blur() event in a very weird way (see here).
So, rather than try and use that, take advantage of CSS selectors. The :focus selector in CSS selects anything that has focus. Since Select2 doesn't actually add any new DOM elements (i.e. once in the HTML, it becomes standard <div> elements, <input> elements, etc), we can find the one that has focus, and successfully call blur on it.
Therefore, by calling $(":focus").blur(), we find the DOM element that currently has focus, and we blur it.
Also, by using select2-close as our event, rather than change, the keyboard won't open even if the user doesn't select an item, but instead clicks outside of it.
I have tested it, and it does work for me on an iPad running iOS 11. Here is the final, working code:
$(document).ready(function() {
$("#Salutation,#Gender").select2().on("select2-open",()=>{
let oldSearchBox = $(".select2-focused")[0]; //Get the current search box
let parent = oldSearchBox.parentNode; //The parent of the search box (i.e. the element that holds it)
let search = document.createElement("input"); //Create a new input box
search.classList.add("select2-input"); //Make it look like the old one
search.addEventListener("keyup", ()=>{ //Whenever someone releases a key, filter the results
let results = parent.parentNode.getElementsByClassName("select2-result"); //Get all of the select box options
let query = search.value.toLowerCase(); //Get what the user has typed (in lower case so search is case-insensitive)
for (let result of results) { //Loop through all of the select box options
let resultText = result.children[0].childNodes[1].nodeValue.toLowerCase(); //Get the text for that option (also in lower case)
result.style.display = (resultText.indexOf(query)==-1) ? "none" : "block"; //If the result text contains the search, it is displayed, otherwise it is hidden
}
})
parent.appendChild(search); //Add the new search box to the page
oldSearchBox.remove(); //Remove the old one
});
$("#Salutation,#Gender").select2().on("select2-close",()=>{
setTimeout(()=>{
$(":focus").blur();
}, 50);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.4.5/select2.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.4.5/select2.min.js"></script>
<div class="container">
<div class="row">
<div class="col-xs-4 col-xs-offset-4">
<h3>Application Form</h3>
<form class="form" action="/action_page.php">
<div class="form-group">
<label for="GivenName">Given Name:</label>
<input class="form-control" type="text" id="GivenName">
</div>
<div class="form-group">
<label for="Surname">Surname:</label>
<input class="form-control" type="text" id="Surname">
</div>
<div class="form-group">
<label for="Salutation">Salutation:</label>
<select class="" name="" id="Salutation">
<option value="Mrs">Mrs</option>
<option value="Mr">Mr</option>
<option value="Miss">Miss</option>
</select>
</div>
<div class="form-group">
<label for="Gender">Gender:</label>
<select class="" name="" id="Gender">
<option value="Female">Female</option>
<option value="Male">Male</option>
<option value="Transgender">Transgender</option>
</select>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
</div>
I have an alternative work around that I've been using for about a week now. So far it seems to work well on all android and ios devices I've tried. I use this on select2 instances that have 'multiple' set to false (i.e. 'single' type). In this case, I want the user to make a single selection, and the the keyboard should disappear.
In short, during the select2-close event you set a flag that indicates that you want to disable any focus event the select2-focusser receives. When the focus event is triggered, you check if the flag is set and if so you simply move the focus to another target. I add the flag as a data property and I reset this flag after a second using a setTimeOut.
This works because the select2 close handler is split into 2 parts, and the 'select2-close' event is triggered at the end of part 1 (and before part 2). Part 1 is the 'abstract' close handler, which actually closes the selection dialog, and sets the control's value. Part 2 is the 'single' close handler, which really just causes the select2 to refocus on itself (which is the problem!).
For me, I added a '.focus-bait' class to one of my nav bar buttons, and I use this to divert focus during the focusser's focus event execution. If you have issues getting this refocus step to work, try a different element (I had a problem getting it to work on a button I had made for the purpose of focusing on. I'm still not sure why, but I didn't investigate more as my nav button solution worked perfectly for my needs).
$('body').on('focus','.select2-focusser', function(e) {
let isDisabled = $(this).parent().first().data("disable-focus");
if (isDisabled) {
console.log('Focusser: focus event aborted');
$('.focus-bait').focus();
}
});
//select2_focus_ctrl is a class that I add to any select2 container
//that I wish to use this focus logic e.g. add it to #Salutation,#Gender
$('body').on('select2-close','select2_focus_ctrl', function(e) {
console.log('Focusser: disabling focus event');
if ($(this).data('select2').opts.multiple != true) {
$(this).prev().data("disable-focus",true);
setTimeout(function() {
console.log('Focusser: enabling focusser');
$(this).prev().data("disable-focus",false);
}, 1000);
}
});
Here is a full code snippet. While writing it I noticed that if the select2 container is sourced from a 'select' element, the 'multiple' property does not exist (mine used a 'div'), so I've changed one line of code: .opts.multiple != true (instead of == false).
$(document).ready(function() {
$('#Salutation').select2(
);
$('body').on('focus','.select2-focusser', function(e) {
let isDisabled = $(this).parent().first().data("disable-focus");
if (isDisabled) {
console.log('Focusser: focus event aborted');
$('.focus-bait').focus();
}
});
$('body').on('select2-close','.select2_focus_ctrl', function(e) {
console.log('Focusser: disabling focus event');
if ($(this).data('select2').opts.multiple != true) {
$(this).prev().data("disable-focus",true);
setTimeout(function() {
console.log('Focusser: enabling focusser');
$(this).prev().data("disable-focus",false);
}, 1000);
}
});
$('body').on('change','#Salutation', function(e) {
let theVal = $('#Salutation').select2("val");
$('#currentVal').val(theVal);
});
});
body {
background: #dddddd;
padding: 20px;
font-family: Helvetica;
}
button {
background: #0084ff;
border: none;
border-radius: 5px;
padding: 8px 14px;
font-size: 15px;
color: #fff;
cursor: pointer;
}
button:focus {
background: #fff;
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.js"></script>
<button type="button" class="focus-bait">
Just the bait!
</button>
<br>
<div>
<input id="currentVal" style="height:20px;width:150px"/>
</div>
<br><br>
<select class="select2_focus_ctrl" id="Salutation" style="width:200px;">
<option value="Mrs">Mrs</option>
<option value="Mr">Mr</option>
<option value="Miss">Miss</option>
<option value="Esquire">Esquire</option>
<option value="Other Options">Other Options</option>
<option value="Just for interest">Interesting longer item</option>
</select>

How to add same from input area when user press a button?

I am doing a form right now, I want to automatically add another input area, same as the line above, when user press a button.
<div class="row" id="1">
<div class="form-group col-lg-2">
<select class="form-control" id="select">
<option selected>Tag Name</option>
<option value="p">p</option>
<option value="br">br</option>
</select>
</div>
<div class="form-group col-lg-2">
<select class="form-control" id="class">
<option selected>Tag Class</option>
<option value="Day">Day</option>
<option value="BlockTime">BlockTime</option>
<option value="BlockTitle">BlockTitle</option>
<option value="Session">Session</option>
<option value="Person">Person</option>
<option value="Firm">Firm</option>
</select>
</div>
<div class="form-group col-lg-7">
<textarea class="form-control" rows="3" id="textArea">Please put the content inside this html tag.</textarea>
</div>
<div class="form-group col-lg-1">
<input type="button" class="btn btn-default" onclick="addLine()" value="Add">
</div>
</div>
This is a line of input area, I want to add the same html below the input area we have now when user press the "Add" button. Maybe using JQuery?
It should looks like this one.
This is what I tried:
function addLine() {
$('#1').clone().attr('id', '').appendTo('form');
}
For now, it seems work, but how should I do if I want to add id to the new created element, say, 2, 3, 4?
Also I am not sure am I did it the right, or best way.
Solution by jQuery
var n = 8 // adjust it in some way
var inputArea = ['<div class="form-group col-lg-'+n+'">',
'<textarea class="form-control" rows="3" id="textArea-'+n+'">',// let's be nice and not use same IDs twice
'Please put the content inside this html tag.',
'</textarea></div>'].join('')
$('.row').append(inputArea);
However make sure that your back end is ready to handle that input.
EDIT:
The solution might not be fancy and using clone() is completely fine too.
To keep track of ids I would add a simple variable like n that I would increment every time a new input area is added, and then add it to id.
So, init
var n = 0;
In addLine:
n++;
Set the id (doable in addLine too)
$target.attr('id', 'inputArea-'+n);//Assuming that $target is the inputArea in question
You can copy from a blueprint structure in the DOM and append your copy after the button.
var addline = function() {
var invisibleNewLine = jQuery('#blueprint').clone();
var visibleNewLine = invisibleNewLine.removeClass('invisible');
jQuery('#target').append(visibleNewLine);
};
jQuery('#add-line').click(addline);
Remove the onClick handler on the element and bind the event using jQuery.
<button id="add-line" class="btn btn-default">Add</button>
See the fiddle here: JSFiddle

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