Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table ...

JavaScript variables hold a wide variety of information and can be used with virtually any data type. Here's how to use variables to store numbers, text strings, objects, and more.

After adding "y" to "x," JavaScript stores "11.234" in the "z" variable. You can control the number of decimal points that appear in a result by using the "toFixed" function. Instead of adding "x ...

Chrome also supports using these new custom variables in JavaScript without any issues. CSS variables are very new though have been in the works for years — but they’re not widely supported yet .

Hello,<BR><BR>I'm using some JavaScript and a cookie to gather general user information and then pass it to another page which in turn uses JavaScript to write the variable data into a form text ...