I have created a button in javascript. Now I can add button text on to it but with information icon.
I have created a button using javascript like this
<script>
function myFunction() {
var x = document.createElement("BUTTON");
var t = document.createTextNode("Click me");
x.appendChild(t);
document.body.appendChild(x);
}
</script>
Now, I know ⓘ is html entity of information icon
<button style="font-size:24px">Click meⓘ</button>
This is the output from this code
The above code will produce the required thing i.e button name + icon.
but if i do this
var t = document.createTextNode("Click me"+"ⓘ");
it will not work.It will print text(ⓘ) only on button.I want to achieve same thing in javascript created button using javascript only.
I have also tried
x.classList.add("fa fa-info-circle fa-6")
font awesome class for info icon but it throws error.
Uncaught DOMException: Failed to execute 'add' on 'DOMTokenList': The token provided ('fa fa-info-circle fa-6') contains HTML space characters, which are not valid in tokens.
Is there any way to use html entities in javascript or any other simpler method to achieve the same.
Thanks,
You can either change the innerHTML of the button instead of creating a text node, since text nodes display text as-is:
<button onclick="myFunction()">ADD ANOTHER BUTTON</button>
<script>
function myFunction() {
var x = document.createElement("button");
x.innerHTML = "Click me ⓘ"
document.body.appendChild(x);
}
</script>
Or, you can use the unicode value of the character, in your case, it's \u24d8:
<button onclick="myFunction()">ADD ANOTHER BUTTON</button>
<script>
function myFunction() {
var x = document.createElement("button");
var t = document.createTextNode("Click me \u24d8");
x.appendChild(t);
document.body.appendChild(x);
}
</script>
Here is what you should change to make it work for font awesome:
x.classList.add("fa", "fa-info-circle", "fa-6");
Docs link for classList methods: https://developer.mozilla.org/en-US/docs/Web/API/Element/classList#Methods
Final Result
function myFunction() {
var x = document.createElement("BUTTON");
var t = document.createTextNode("Click me");
x.classList.add("fa", "fa-info-circle", "fa-6");
x.appendChild(t);
document.body.appendChild(x);
}
The createTextNode method creates a text node and shows contents as plain text. To display HTML, you need to use the innerHTML property. Also, you missed the semicolon.
function createButton(html) {
var btn = document.createElement('button');
btn.innerHTML = html;
document.body.appendChild(btn);
}
createButton('Click me ⓘ');
Related
I have a button when user clicks the button it create the text box along with remove button
but all the text boxes created with same id how we can delete the text box when clicks respective remove button
here My Code:
<body>
<button type="button" id="URLbtn" onclick="Createinput()"> + Add URL</button>
<div id="TextAreaBtn"></div>
<script>
function Createinput() {
var newdiv=document.createElement("div");
newdiv.id="test"
var Inputele=document.createElement("input");
Inputele.type="text";
Inputele.id="URLtxt"
newdiv.appendChild(btnele);
var btnele=document.createElement("button");
btnele.id="rmvbtn"
btnele.type="button"
btnele.innerHTML="-"
btnele.onclick=RemoveUrlBox()
newdiv.appendChild(btnele);
var element = document.getElementById("TextAreaBtn");
element.appendChild(newdiv);
}
function RemoveUrlBox() {}
</script>
</body>
i am getting following output
if user click 2 remove button only remove the second textbox and button
You need to select the wrapping div. Easiest way is to use remove() and use closest. No need to use the id..... You also need to remember ids need to be unique.
function createInput() {
var newDiv = document.createElement("div");
newDiv.className = 'group';
var inputElem = document.createElement("input");
inputElem.type = "text";
newDiv.appendChild(inputElem);
var btnElem = document.createElement("button");
btnElem.type = "button";
btnElem.textContent = "-";
btnElem.addEventListener("click", removeUrlBox);
newDiv.appendChild(btnElem);
var element = document.getElementById("TextAreaBtn");
element.appendChild(newDiv);
}
function removeUrlBox() {
this.closest('.group').remove();
}
<button type="button" id="URLbtn" onclick="createInput()"> + Add URL</button>
<div id="TextAreaBtn"></div>
This should do the trick:
const txtarea=document.getElementById('TextAreaBtn');
document.getElementById('URLbtn').onclick=()=>txtarea.innerHTML+=
'<div><input type="text" class="URLtxt"><button class="rmvbtn">-</button></div>';
txtarea.onclick=ev=>ev.target.className==="rmvbtn"&&ev.target.parentNode.remove()
<button type="button" id="URLbtn"> + Add URL</button>
<div id="TextAreaBtn"></div>
I replaced your id attributes with class attributes, as these don't need to be unique.
I reduced your script by using innerHTML instead of laboriously putting elements together with createElement(). This is a matter of opinion as both methods have their advantages.
I also used delegated event listener attachment for the removal buttons. This way you can get away with a single event listener on div.TextAreaBtn. The attached funcion will only trigger any action if the clicked element has class "rmvbtn".
Change
btnele.onclick=RemoveUrlBox()
to
btnele.addEventListener('click', function (e) {
// `this` is the button that was clicked no matter about the id
// `this.parentNode` is the div you want to remove
const nodeToRemove = this.parentNode;
nodeToRemove.parentNode.removeChild(nodeToRemove);
});
I have a page where I would like two buttons which when one is clicked, displays hello, and when the other one is clicked would hide the "hello" message and then display "goodbye". I know this needs to be done in javascript but I am not good with javascript.
Check this snippet
<p id="msg"></p>
<button onclick="helloFunction()">Say Hello</button>
<button onclick="byeFunction()">Wave Goodbye</button>
<script>
function helloFunction() {
document.getElementById("msg").innerHTML = "Hello";
}
function byeFunction() {
document.getElementById("msg").innerHTML = "Goodbye";
}
</script>
There are a couple of ways to do it, one of which would be affecting the visiblity of dom elements which say hello or goodbye, the other method as illustrated below you would actually change the text of a dom object based on which button is pressed
<button onClick="javascript:say('Hello');">Say Hi</button>
<button onClick="javascript:say('Goodbye');">Say Goodbye</button>
<div id="TextField"></div>
<script>
function say(text) {
var element = document.getElementById("TextField");
element.innerHTML = text;
}
</script>
here what you'll need to achieve such a feat.
first create a div or a p tag to hold ur text and two buttons
eg
<div id="container">Hello</div>
<button id="show">Show</button>
<button id="hide">Show</button>
make sure your div has an id and you buttons too. You use that for reference.
then in your javascript, you can either toggle the display or visibility of the div
<script type="text/javascript">
//Declare variable
var div = document.getElementById("container");
var show = document.getElementById("show");
var hide = document.getElementById("hide");
//run when windows fully loads
window.onload = function(){
//when i click show button
show.onclick = function(){
div.style.display = "block";
}
//when i click hide button
hide.onclick = function(){
div.style.display = "none";
}
}
//That is champ, this is all vanilla javascript. You can also look into implementing with jquery.
</script>
i append a textarea with a button
$(".mydiv").append("<textarea id='myTextarea'></textarea><div class='sendReply btn btn-default'>my button</div>");
After that , i'm writing new texts into textarea and trying to get new writed value inside from textarea with this on click function ;
jQuery(document).on('click','.sendReply', function () {
var myNewText = $("#myTextarea").val();
console.log(myNewText);
});
But it says that this an "empty string" , if i add text area with a value like <textarea id="myTextarea">some text</textarea> my fucntion works and gives me "some text" but if i edit textarea and click sendReply button (my on click function), it is still gives me "some text" , it don't change
How can i get edited textarea value after apppend a textarea?
You have an . in .sendReply while appending the HTML
You just need to remove . from .sendReply
Use
<div class='sendReply btn btn-default'>my button</div>"
As you are using Event delegation your jQuery will work.
As you are adding textarea with same ID multiple times? $("#myTextarea").val() will always show value of first textarea with id myTextarea. You can use a common class and then use prev() to select the textarea
See example
$(document).ready(function() {
$(document).on('click', '.sendReply', function() {
var myNewText = $(this).prev(".myTextarea").val();
alert(myNewText);
});
for (var i = 0; i < 5; i++) {
$(".mydiv").append("<textarea class='myTextarea'>some text</textarea><div class='sendReply btn btn-default'>my button</div>");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class='mydiv'></div>
It should be
$(".mydiv").append("<textarea id='myTextarea'></textarea><div class='sendReply btn btn-default'>my button</div>");
then
jQuery(document).on('click','.sendReply', function () {
var myNewText = $("#myTextarea").val();
console.log(myNewText);
});
dont use dot(.) for the classname..
Instead using div .. use some standard to code up .. you can make it has button .. here is the code
<div class="mydiv"></div>
$(".mydiv").append("<textarea id='myTextarea'></textarea><input type='button' class='sendReply btn btn-default' value='my button'></input>");
jQuery(document).on('click','.sendReply', function () {
var myNewText = $("#myTextarea").val();
console.log(myNewText);
alert(myNewText);
});
JSFIDDLE
What I am trying to figure out is how to make a button, that when you click, will replace itself with a textbox. I found this code on the W3Schools website, and can't figure out how to put javascript (or HTML) elements in.
<p>Click the button to replace "Microsoft" with "W3Schools" in the paragraph below:</p>
<p id="demo">Visit Microsoft!</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
var str = document.getElementById("demo").innerHTML;
var res = str.replace("Microsoft", "W3Schools");
document.getElementById("demo").innerHTML = res;
}
</script>
</body>
</html>
<input type="text" name="textbox" value="textbox"><br>
In the end I want to be able to replace a button with the textbox I put outside the html tags
I would not suggest you the innerHTML replacement method.
Here are the steps where you can use replaceChild
Get the parent node of the selected element
use replaceChild
Here the code
// create the new element (input)
var textBox = document.createElement("input");
textBox.type = "text";
// get the button
var button = document.getElementById("demo");
// reference to the parent node
var parent = element.parentNode;
// replace it
parent.replaceChild(textBox, button);
On older browser you probably need a slighlty different solution.
var parent = button.parentNode;
var next = button.nextSibling;
// remove the old
parent.removeChild(button);
// if it was not last element, use insertBefore
if (next) {
parent.insertBefore(textBox, next);
} else {
parent.appendChild(textBox);
}
I ended up finding a code that works off of http://www.webdeveloper.com/forum/showthread.php?266743-Switch-Div-Content-Using-Javascript
I have a javascript function, used to increase and decrease the height of div.
This is the code
function chk()
{
var node = document.getElementById('content');
node.classList.toggle('expand');
}
Works with this HTML code:
<div id="hite">
<div id = "content">
This is dummy text.
</div>
<div id="button" onclick="chk()">
click to read
</div>
</div>
I want the text to change in button div, once user click on it, and when again click on it, text should be again 'click to read'.
Try add this:
document.getElementById('button').innerHTML = node.classList.contains('expand')? 'hide':'click to read';
http://jsfiddle.net/rooseve/Bup8u/
You can use innerHTML property.
var ele = document.getElementById('button');
if (ele.innerHTML == "click to read")
ele.innerHTML = "User click on it!";
else
ele.innerHTML = "click to read";
you can also use "textContent" if you want to add only text and not html data.
if(document.getElementById("button").textContent!='click to read'){
document.getElementById("button").textContent="your content";
}else{
document.getElementById("button").textContent="click to read";
}