if...else : If « Statement « JavaScript Tutorial






  1. JavaScript Tutorial
  2. Statement
  3. If

Syntax

if(statement){
      code;
    }else(statement){
      code;
    }

The if...else statement performs logic statements on specific cases.

If statement is satisfied, its statements are executed.

Otherwise, the else statement is evaluated.

When statement evaluates to true, code is executed.

<html>
    <body>
    <script lanuguage="JavaScript">
    <!--
    var temp = 1;

    if(temp == true){
         document.write("Statement is true");
    } else{
         document.write("Statement is false");
    }

    -->
    </script>
    </body>
    </html>








3.2.If
3.2.1.Conditionals
3.2.2.if...else
3.2.3.Use if statement to compare the numbers
3.2.4.Use if/else to check the returning value from a confirm dialog
3.2.5.Use if statement to check the returning value from a confirm dialog
3.2.6.Nested if statement
3.2.7.if...then...else...if