I've been tasked with building a very simple app that that has a series of dropdowns in rows of 2, when 2 are selected, a simple functions concatenates the 2 values and gives an output next to them like so:
dropdown1 dropdown2 Output
What I'm trying to get is, once the second dropdown value is chosen the function runs and displays the output where it says output. But currently, what seems to happens is the output is displayed in a new window.
Here's what I have so far (HTML):
<form>
<select id="test">
<option>Arena/Quantum Barcelona LTBC</option>
<option>Arena/Quantum Spain LTES</option>
</select>
<select id="name" onchange="tryThis()">
<option>Name</option>
<option>Name1</option>
</select>
</form>
JavaScript:
function tryThis() {
var string, string1 = '';
var e = document.getElementById("test");
string = e.options[e.selectedIndex].text;
var a = document.getElementById("name");
string1 = a.options[a.selectedIndex].text;
document.write(string+'_'+string1);
}
Am I making this more difficult than it needs to be?!
That's because document.write clears the page before displaying something. You should never need to use that function.
Instead, you could append it to e.g. the body:
document.body.appendChild(
document.createTextNode(string + '_' + string2)
);
Have you noticed that your JS function is called tryThis() and on the event handler you're calling tryThsis()
However in your case I'd refrain from using document.write, good alternatives are appending to the body or having a DIV and changing the innerHTML of that DIV
First put an id on your form so that it is easier to access.
var a = (function () {
var myForm = document.getElementById("myForm"),
magic = function () {
var a = myForm.getElementsByTagName("select"),
b,
c = [];
for (b = a.length - 1; b > -1; b -= 1) {
c.push(a[b].value);
}
alert(c.join(" ") + " output");
};
myForm.onclick = magic;
}());
You were not specific as to what the extra "output" is supposed to be or how you want the data returned, but here you go. Instead of using an alert you could push the result into the value of a different form element. Do not use document.write as this cannot be deferred. If you attempt to defer a document.write operation it will replace the entirety of the body contents of the current page.
Related
I need to create some multiple input field dynamically on onkeypress event using JavaScript/jQuery.
I have one text-box,when user is entering any key on that text area two input field and second text-box is opening. When user will enter any key on second text box again another two input field and third text-box will open and so on. There is also a cross button is creating to close each individual set of text-box. In my current code I doing this putting all field static as user may create many numbers of input field so that I want to create those in dynamically with different name and id.
My code is in this Plunkr.
EDIT: Misunderstood question, answer below
This can easily be done if you have a specific field in which to create the input fields. For example, I will load input fields into document.body
Everytime you call newinput() an input field is created in parent who's id starts at input0 and increments each time
var id = 0;
var newinput = function() {
var parent = document.body
var field = document.createElement("input")
field.className = "myclassname"
field.style = "display:block;"
field.id = "input" + id;
parent.appendChild(field);
id += 1;
}
<body>
<div>Click plus to add input</div>
<button type="button" name="button" onclick="newinput()">+</button>
</body>
In your case, it looks like you want to add a group, you can do this:
var fieldgroup = document.querySelector(".questionshowp .form-group").cloneNode(true); // (1)
var addinput = function(){
var parent = this.parentNode.parentNode.parentNode; // (2)
var n = parent.querySelectorAll(".form-control").length
var f = fieldgroup.cloneNode(true);
f.children[0].id = "question"+n // (3)
f.querySelector(".secondsec").querySelector("button.btn-success").onclick = addinput // (4)
parent.insertBefore(f,parent.querySelector(".clear")); // (5)
}
Create a copy of a field-group to be used as a template
Get the container of input fields
Set the input field id with regard to total number of form-groups in parent
Make sure template applies addinput() to button
Insert input form before end of parent form
The easiest way apply this function to all + buttons is with JQuery
$("button.btn-sm.btn-success").on("click", addinput)
This would need to be located at the bottom of your html file, and below addinput() definition
EDIT: Real Answer
Turns out I wrote all that and just realized I misunderstood your question.
Still we can use the same principle to do what I believe you are asking
master = document.querySelector(".aquestionpart"); // (1)
form = document.querySelector(".questionparts"); // (2)
function show(){
var f = form.cloneNode(true);
var n = master.querySelectorAll(".questionparts").length;
f.id = "questionparts"+(n+1); // (3)
f.querySelector("#questions").onkeypress = show; // (4)
this.parentElement.parentElement.querySelector("#questionparts"+ n + " > .questionshowp").style ="display:block;"; // (5)
this.onkeypress = undefined; // (6)
master.insertBefore(f,master.children[master.children.length-1]) // (7)
}
form.querySelector("#questions").onkeypress = show; // (8)
form = form.cloneNode(true); // (9)
Get poll container
Get poll question form to use as template
Set new poll question form id with respect to number of others
Set show function to new poll question
Show multiple choice
Make sure subsequent keypresses dont create more questions
Insert question before .clear
sets up first question to show
creates copy of fresh question to use as template
With this your current scripts.js is unnecessary, and .aquestionpart must look like this for proper formatting
<div class="aquestionpart">
<div class="questionparts" id="questionparts1">...</div>
<div class="clear"></div>
</div>
From within .questionparts be sure to remove onkeypress="show();" from input. It should look like this.
<input name="questions" id="questions" class="form-control" placeholder="Questions" value="" type="text">
And finally an interesting note is that both of the scripts I've provided can be used together! (With some slight modifications)
//Author: Shane Mendez
var fieldgroup = document.querySelector(".questionshowp .form-group").cloneNode(true);
var addinput = function(){
var parent = this.parentNode.parentNode.parentNode;
var n = parent.querySelectorAll(".form-control").length
var f = fieldgroup.cloneNode(true);
f.children[0].id = "question"+n
f.querySelector(".secondsec").querySelector("button.btn-success").onclick = addinput
console.log(parent)
parent.insertBefore(f,parent.children[parent.children.length-1]);
}
master = document.querySelector(".aquestionpart");
form = document.querySelector(".questionparts");
function show(){
var f = form.cloneNode(true);
var n = master.querySelectorAll(".questionparts").length;
f.id = "questionparts"+(n+1);
f.querySelector("#questions").onkeypress = show;
console.log(this)
this.parentElement.parentElement.querySelector("#questionparts"+ n + " > .questionshowp").style ="display:block;";
this.onkeypress = undefined;
master.insertBefore(f,master.children[master.children.length-1])
$(f.querySelectorAll("button.btn-sm.btn-success")).on("click", addinput)
}
form.querySelector("#questions").onkeypress = show;
form = form.cloneNode(true);
$("button.btn-sm.btn-success").on("click", addinput)
If you put this in your scripts.js file and put that at the bottom of your body tag, then the only thing left is the - buttons.
You can use this Press to add multiple input field inside a div dynamically using jQuery. Here you only need to call the function that takes two parameter HTMLElement and config like:
$(".addInput").click(function() {
build_inputs($(this), config);
});
In the config you can add numbers of inputs form config like:
let config = {
title: "Slides",
forms: [
{
type: "text",
name: "name",
class: "form-control mb-2",
placeholder: "Enter Data..."
},
{
type: "file",
name: "image",
class: "btn btn-light btn-sm mb-2 btn-block"
},
{
type: "number",
name: "mobile",
class: "form-control mb-2",
placeholder: "Enter Data..."
}
],
exportTo:$('#getData')
};
I'm trying to condense two processes down in to one by having the two pages I need on one page using an iframe.
I have a page that contains a text area (used for sending an email) and then I have a purchase reference page that contains the details of someones purchase.
I'm trying to append an iframe of the purchase page to the bottom of my email page and then grab some data that's on it and insert it in to the text area.
EDIT: This is what I have so far:
Script one
//Grabs the selected purchase number
var purchaseNumber = window.getSelection();
purchaseNumber = purchaseNumber.toString();
var purchaseTitle;
var purchaseNumber;
function frameLoaded() {
purchaseTitle = window.frames['purchaseIframe'].contentDocument.getElementById ('listingTitle');
purchaseNumber = window.frames['purchaseIframe'].contentDocument.getElementById ('auctionSoldIdDisplay');
purchaseTitle = purchaseTitle.innerHTML;
purchaseNumber = purchaseNumber.innerHTML
var purchaseDetails = purchaseTitle + " - " + purchaseNumber;
insertText = insertText.replace("PURCHASEDETAILS", purchaseDetails);
}
if(purchaseNumber.length > 0){
var purchaseIframe = document.createElement('iframe');
purchaseIframe.src = 'http://www.mysite.co.nz/Admin/Listing/PurchaseDisplay.aspx?asid=' + purchaseNumber + '&submit1=++GO++';
purchaseIframe.setAttribute("height","1000");
purchaseIframe.setAttribute("width","100%");
purchaseIframe.setAttribute("id","purchaseIframe");
purchaseIframe.setAttribute("onload", "frameLoaded();");
void(document.body.appendChild(purchaseIframe));
alert(purchaseNumber);
}
Script Two
//Gather the selected template
var selectedTxt = document.getElementById('txtEmailText').value;
//Change the selected txt to a string
var insertText = selectedTxt.toString();
var purchaseTitle = window.frames['purchaseIframe'].contentDocument.getElementById ('listingTitle');
var purchaseNumber = window.frames['purchaseIframe'].contentDocument.getElementById ('auctionSoldIdDisplay');
purchaseTitle = purchaseTitle.innerHTML;
purchaseNumber = purchaseNumber.innerHTML
var purchaseDetails = purchaseTitle + " - " + purchaseNumber;
insertText = insertText.replace("PURCHASEDETAILS", purchaseDetails);
//Pasting the variable in to the textarea
document.getElementById('txtEmailText').value = insertText;
Effectively I am highlighting the purchase reference number on the page then executing this script to open the purchase page using the highlighted number. I am then grabbing the text values of the elements I need and pasting them in to the text area.
I'm still pretty new to javascript and am teaching myself as I go.
If i run the above scripts one after the other then it works like a charm, however if I try to run them together with the second in an onload() function set to the iframe then it won't.
Any help would be greatly appreciated or if you could point me in the direction of an article to help.
My first thought is that the iframe is not fully loaded before you try to get the values from it. My thought would be to try adding an onload event to your iframe and then when it loads invoke a function that grabs the value.
I would add purchaseIframe.setAttribute("onload", "frameLoaded();"); to your purchaseIframe block and then add the frameLoaded() function to your script. something like:
function frameLoaded() {
var purchaseTitle = window.frames[0].document.getElementById("listingTitle" );
var purchaseNumber = window.frames[0].document.getElementById("auctionSoldIdDisplay");
console.log(purchaseTitle.innerHTML);
console.log(purchaseNumber.innnerHTML);
}
And see if something like that grabs the right values. If it does than you can plug it in where you need it.
Am I understanding your problem correctly?
How does one get the .tagName of a value passed in an HTML form input? This is to check whether the value that has been passed is an 'iFrame'. The input is to only accept iframes
For example:
//HTML
<input type="text" id="iFrame">
<button id="butt">Push</button>
//JavaScript
document.getElementById("butt").onclick = function(){
var iframe = document.getElementById("iFrame").value;
console.log(iframe.tagName);
}
I think you are looking for
var iframe = document.getElementsByTagName("iFrame")
I perhaps did not ask the question in the best way, initially.
I wanted to check if the value passed in the input field was an "iframe" (the input is to only accept iFrames). Since .value returns a string and not an HTML tag, getting the tag name through basic methods would not work. I needed another way.
For anybody else who needs a quick solution, this is how I managed to do it:
document.getElementById("submit").onclick = function(){
var iframe = document.getElementById("iFrame").value;
var check1 = iframe.match(/iframe/g);
var check2 = iframe.match(/frameborder/g);
var check3 = iframe.match(/http:/g);
var check = check1.length + check2.length + check3.length;
if (check === 4) {
alert("good!");
}
}
I am trying to take input from a number field and display it somewhere else on the page.
Here is my HTML
<input id="dollar" type="text" name="mytextfield2" onkeyup="updateDollarDisplay();">
<div id="dollarValue"></div>
and my javascript
function convertDigitsToArray(number){
var s = parseInt(number).toString(10).split("").map(Number);
return s;
}
function updateDollarDisplay() {
var amount = $('#dollar').value;
var a = convertDigitsToArray(amount);
console.log(a[0]);
$('#dollarValue').text(a[0]);
}
Running the exact code in a javascript interpreter works fine, it gives me each digit as an element in the array. When I try to do the same through the HTML page it gives me NaN each time. Any ideas?
Fiddle here: http://jsfiddle.net/7mzo8eb5/2/ I'd like it to show to input in the grayed div on each input.
The problem is with var amount = $('#dollar').value;
value is not an attribute, but val is a function. Should be: var amount = $('#dollar').val();
I have a comment box(textarea) in which the user types something and when he hits enter that thing is automatically displayed in 'comment section'. Now when the user hits submit I'm executing the following code,
var comment = $("#commentBox").val();
var commentSection = $("#commentSection");
comment.appendTo(commentSection);
By the above code the comment typed by user is dynamically displayed in the commentSection. This works fine but when user types something like,
<input type='text'>
in the comment box then a textbox is created within the comment section. So is there a way through which I could not let this happen?
Thanks in advance.
One way would be to just append the data as .text
Something like this:
var comment = $("#commentBox").val();
var commentSection = $("#commentSection");
commentSection.text(comment);
Edit: To append to an existing part of the comment, replace:
commentSection.text(comment);
with:
commentSection.text(commentSection.text() + comment);
You have to convert the string to entities. Define this function:
function htmlencode(str) {
return str.replace(/[&<>"']/g, function($0) {
return "&" + {"&":"amp", "<":"lt", ">":"gt", '"':"quot", "'":"#39"}[$0] + ";";
});
}
Then run the following code when the user hits enter:
var comment = htmlencode($("#commentBox").val());
var commentSection = $("#commentSection");
comment.appendTo(commentSection);
Try this ,
div.insertAdjacentHTML( 'beforeend', comment);
You can use
var commentText = $("#commentBox").text();
but this do not clean html tags on your string, additionally you can use a function to do this
function RemoveHTMLTags(vals) {
var regX = /(<([^>]+)>)/ig;
var html = vals;
return (html.replace(regX, ""));
}
and then you use:
var finalComment = RemoveHTMLTags(commentText);