How do I properly set link variables in javascript?

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I have 4 buttons which create a text output, so that a "Go" button goes to the link given in that text output. I'm still a javascript noob and am thinking in other languages, but is there a way to make .innertext into a variable based on last button pressed? This is the best logic I've come up with, and would like to make it more efficient code.


<h1 id="changedText">Button changes this text</h1>

<button onclick="btn1()">Button1</button>
<button onclick="btn2()">Button2</button>
<button onclick="btn3()">Button3</button>
<button onclick="btn4()">Button4</button>

<button onclick="Go()">Go to Link Above</button>

function btn1() {
document.getElementById("changedText").innerText = "http://www.test-";
function btn2() {
document.getElementById("changedText").innerText = "http://www.test-";
function btn3() {
document.getElementById("changedText").innerText = "http://www.test-";
function btn4() {
document.getElementById("changedText").innerText = "http://www.test-";

As you can see my code is really dirty, and doesn't "Go" to the link, what am I missing?

function setLink(link) {
  document.getElementById("changedText").innerText = link;

function Go() {
  document.location.href = document.getElementById("changedText").innerText;
<h1 id="changedText">Button changes this text</h1>

<button onclick="setLink('')">Button1</button>
<button onclick="setLink('')">Button2</button>
<button onclick="setLink('')">Button3</button>
<button onclick="setLink('')">Button4</button>

<button onclick="Go()">Go to Link Above</button>

Storing the information you need, Objective: To gain familiarity with the basics of JavaScript variables. But one special thing about variables is that their contained values can change. end with a semi-colon ( ; ) — your code may work correctly for single lines, but Styling links · Web fonts · Assessment: Typesetting a community school  Creating a variable in JavaScript is pretty simple. To create a variable, you use the var keyword, followed by the name of the variable, and then a semicolon, like this: var book; As a programmer, you have a lot of flexibility when naming your variables.

Just single click handle that.No need to define 4 function.

$("button").on("click", function() {
  var siteId = $(this).text().slice(-1);
  var url = "";
  if (!isNaN(siteId)) {
    url = url.replace(/@/gi, siteId);

<script src=""></script>

A Quick Tutorial on JavaScript Variable Passing, When you set up the form in this manner, what the user inputs is carried along in the URL. The information is separated from the actual address by a question mark  In programming, just like in algebra, we use variables (like price1) to hold values. In programming, just like in algebra, we use variables in expressions (total = price1 + price2). From the example above, you can calculate the total to be 11. JavaScript variables are containers for storing data values.

I think you can try using input tag and whenever click on a button, you assign the value properties to a global variable. Then, "Go" function will change your text as:

    function Go(){
      document.getElementById("changedText").innerText = `http://www.test-${globalVariable}.com`;

JavaScript Best Practices, It is a good coding practice to put all declarations at the top of each script or function. This will: Give cleaner code; Provide a single place to look for local variables  To use a variable, you've first got to create it — more accurately, we call this declaring the variable. To do this, we type the keyword var or let followed by the name you want to call your variable: let myName; let myAge; Here we're creating two variables called myName and myAge. Try typing these lines into your web browser's console.

$("button").on("click", function() {
  var url = $(this).data("url");
  $("#goButton").data("url", url)
$("#goButton").click(function() {
  window.location.href = $(this).data("url");
<script src=""></script>

<h1 id="changedText">Button changes this text</h1>

<button data-url="">Button1</button>
<button data-url="">Button2</button>
<button data-url="">Button3</button>
<button data-url="">Button4</button>

<button id="goButton">Go to Link Above</button>

JavaScript Variables, You can also assign a value to the variable when you declare it: var carName = "​Volvo";. In the example below, we create a variable called  How to assign block of HTML code to a JavaScript variable. Topic: JavaScript / jQuery Prev|Next. Answer: Use the concatenation operator (+) The simple and safest way to use the concatenation operator (+) to assign or store a bock of HTML code in a JavaScript variable. You should use the single-quotes while stingify the HTML code block, it would make easier to preserve the double-quotes in the actual HTML code.

JavaScript best practices, With the code set up as shown in the above block, adding a slash before the opening function addLink(text,url,parentElement){ var newLink = document. function randVal(){ var x = Math.floor(Math.random() * arguments.length); return arguments[x]; } the arguments is an array like object that refers gives a list of all supplied arguments to a function.

PHP and HTML - Manual, Change language: How can I pass a variable from Javascript to PHP? PHP will understand the URL correctly, because you urlencode()d the data. You'll  Your result array is a global variable. Initially its an array with length = 0; You call your ajax function. The length of result array is still 0. Ajax call completes and success function is executed. In success function you assign result to your response data. Now the length of result array is not zero any more . Globally the value is updated.

Use URL Variables to Pass Data, To set up logic using a URL variable, start by selecting URL Variable from the First Party Data options in the left-most column. In the text field that appears to the​  Hi all, I’m sucessfully running lots and lots of Javascript within Axure and its working very well. I’m even able to pull values from Axure variables into Javascript variables via a simple Javascript call like: var myVar = parseInt(’[[axureVar]]’); One thing I’m not able to do (or haven’t figured it out yet) is how to set an Axure variable via Javascript. I’ve tried different

  • I have added the Go function, but for some reason my entire javascript breaks. Now, I'm not getting any text changed. Does this have to do with the source?
  • Can you explain the logic here? I'm a bit puzzled at how this is working.
  • When you click on any button with "data-url" attribute (read more about this attribute here: JQuery read this attribute (this line: var url = $(this).data("url");) and render it inside element with id "changedText" (this line: $("#changedText").text(url);)