JavaScript Variables

JavaScript Tutorial � JavaScript Variables

JavaScript variables are containers for storing data values. You can create a variable with the var keyword, whereas the assignment operator (=) is used to assign value to a variable, like this: var name = value;

Example: This example will show how JS statements look like:

var name = "Peter Parker";
var color = "red";
var age = 25;
var isworker = true;

In JavaScript, variables can also be declared without having any initial values assigned to them. This is useful for variables which are supposed to hold values like user inputs.

Example: This example will show how JS statements look like:

// Declaring Variable
var userSurName;

// Assigning value
userSurName = "Langford";

Declaring Multiple Variables at Once - example

you can also declare multiple variables and set their initial values in a single statement.

Example:

<script>
// Declaring multiple Variables
  var name = "Sal langford", age = 25, isworking = true;

  /* Longer declarations can be written to span

    multiple lines to improve the readability */

 var name = "Sal langford",

   age = 25,

   isworking = true;

  </script

JavaScript variables types, declaration, to php, scope, in string, type, undefined, vacia, exists, let

JavaScript variables types, declaration, to php, scope, in string, type, undefined, vacia, exists, let
JavaScript Variables - javascript tutorial

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