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Change the text of links with an specific class, using javascript [closed]

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I am looking for a way to replace the text of all the links with an specific class, using javascript (not jquery). I would like all the links with that specific class, to have a generic text such as: "click here".

I would use getElementsByClassName to acquire an array of the links. You can then loop through these elements making any changes required.
Heres a Fiddle that also includes some validation to only chenge the text of anchor tags in case you use targetClass for anything else in other elements.
EDIT: looks like other beat me to it :-) (also fixing type in function)

var links = document.querySelectorAll(".yourclass");
for (var i=0; i<links.length; links++)
{
links[i].innerHTML = "click here";
}

This should do the trick. It's using ES6, so make sure you're using either Chrome Canary or a transpiler like Babel.
Say this is your markup...
<a class="classname" href="#">STUBBED</a>
<a class="classname" href="#">MOCKED</a>
<a class="classname" href="#">PLACEHOLDER</a>
This as your JS should work...
let refs = document.getElementsByClassName('classname');
refs = [].slice.apply(refs);
refs.forEach(ref => ref.innerHTML = 'click here');

function myFunction() {
var c = document.querySelectorAll(".example>a");
for(i=0;i<c.length;i++)
{
c[i].innerHTML = "Click Me!";
}
}
This should do the trick in pure javascript

How to remove script tag from html using javascript [closed]

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I am trying to remove script tag from Html Code using JavaScript.
Here is the HTML Code :
<script type='text/x-template-handlebars' id='carousel_ui_buttons_next-nav_next'>
<button class="next nav" asg-button>{{{button_text}}}</button>
</script>
I want to remove script tag so the remaining part would be html only.
I mean code should be changed inside browser.

it would be better if you provided us with the code you currently have to help you understand what happened rather than using the code copy/paste ,anyway to fire the js code you first decide when you want it to kick in
when the page finish loading ?
$(window).load(function() {
$('#carousel_ui_buttons_next-nav_next').remove();
});
or when the page is ready
$(document).ready(function($) {
$('#carousel_ui_buttons_next-nav_next').remove();
});
or if you prefer you can make it as a function and call it as much as
you want instead of repeating the same code over and over everywhere
function hideScript() {
$('#carousel_ui_buttons_next-nav_next').remove();
});
// then use it like //
$(document).ready(function($) {
hideScript();
});
the above code use JQuery which is much easier than vanilla js to understand and to work with.

The content of your <script> tag is invalid Javascript, but here is one possible way of achieving what you are after:
// Function to convert an HTML string to a DOM element
String.prototype.toDOM = function () {
var d = document,
i,
a = d.createElement('div'),
b = d.createDocumentFragment();
a.innerHTML = this;
while (i = a.firstChild) {
b.appendChild(i);
}
return b;
};
// The <script> we wish to replace
var st = document.getElementById('carousel_ui_buttons_next-nav_next');
// Replace it with the <button> that is inside of it
st.parentNode.replaceChild(st.innerHTML.trim().toDOM(), st);

2 lines of Javascript on top of Jquery doesnt work? [closed]

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I am kinda new to Javascript and Jquery and all I wanted to do is a simple test for a navigation bar. I am trying to figure out why my Jquery doesnt work at all...and when I erase my 2 first lines of Javascript, everything works fine...what the hell??? Someone can explain me why is it like this??
My html :
<div id="navbar">
<ul class="ulbar">
<li id="libar">a
<div id="navbar2"></div>
</li>
</ul>
</div>
My JS and Jquery (on same .js):
var buttonA = document.getElementById("libar");
var buttonB = document.getElementById("navbar2");
$(".libar").click(function(){
$(".navbar2").hide("slow", function() {
alert("test");
});
});
Thank you all

try
$(buttonA).click(function(){
$(".navbar2").hide("slow", function() {
alert("test");
});
});

You are gettin the dom elements BY ID first, and referencing later BY CLASS.

I guess you are not able to differentiate between the "class" and "id" attribute.
// IN JavaScript
var buttonA = document.getElementById("libar").value;
// Using jquery, you shall rewrite it as
var buttonA = $('#libar').val();
So in jquery "id" attribute of html elements are accessed by using "#" where as "class" attributes are access by using ".".
Hope that helps.

try this
var buttonA = document.getElementsByClassName("libar");
var buttonB = document.getElementsByClassName("navbar2");
instead of
var buttonA = document.getElementById("libar");
var buttonB = document.getElementById("navbar2");
I think you have class in your html, not id
OR
You need to add id in html

My Javascript Code isn't Working [closed]

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Why does this work:
upButton.addEventListener('click', function(){player.up()}, false);
//downButton.addEventListener('click', function(){player.down()}, false);
but this doesn't work:
upButton.addEventListener('click', function(){player.up()}, false);
downButton.addEventListener('click', function(){player.down()}, false);
These are the buttons:
var upButton = document.getElementById('up');
var downButton = document.getElementById('down');
Right now the program just prints out "Hello World" to a canvas. When I add the event listener to the downButton, it won't print anything. The canvas appears but I don't see the "Hello World" message.
I am very confused. Thanks for the help.
Here is a link to the jsfiddle
http://jsfiddle.net/PPuCR/9/embedded/result/

Based on your fiddle, you have capitalized ID's for right and down. There are case sensitive. I filled in the blanks with a working fiddle: http://jsfiddle.net/guydog28/duYBu/

Your down button id is Down not down so use the below line
var downButton = document.getElementById('Down');
Note : id of an element is case-sensitive

Please consider respecting naming conventions "down" "Down".
Anyway, I think I fix it.
var upButton = document.getElementById('up');
var downButton = document.getElementById('down');
Here is the link : http://jsfiddle.net/PPuCR/15/embedded/result/
Have a nice day.

How to replace </body> and Insert a text before it? [closed]

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I am looking for Javascript (or jquery) code that can automatic replace :
</body>
by (for example ) :
<div>example text</div></body>
Any help would be appreciated.

Why do you want to replace </body>? Instead of replacing, it's a better idea to append the div tag to the body tag, using the .append() method:
$('body').append('<div>example text</div>');

Try using google first.
You can use jquery 'append' function to do this.
Read more here. http://api.jquery.com/append/

Create the div tag with id in your html.
<body>
------------
<div id="sampleId"></div>
-------------
</body>
Use the following in your script.
var div = document.getElementById('sampleId');
div.innerHTML = 'example text';

Just add that element dynamically:
<script type="text/javascript">
function test(){
var div = document.createElement("div");
div.setAttribute("id", "mydiv");
div.className = "notice";
div.style.display = "block";
div.innerHTML = div.innerHTML + 'Extra stuff';
// test case, append the div to the body
document.body.appendChild(div);
}
</script>

If u want to replace something in your page u can use this:
var page = $('html').html();
page = page.replace('</body>', '<div>Test</div></body>');
$('html').html(page);
But if you want just add div to the body element use the code append(''); as suggested ProgramFOX