- This will check a condition and if it is true execute the following code.
- If you have single line code then no need of curly braces {}.
if(condition) { //block of code to be executed if the condition is true. }
Condition
Condition are checked by the following operators ==,>,<,<=,>=,!=
Example
3>4 => false
10<8 => false
3==3 => true
4!=4 => false
3<=4 => true
Code:-
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<h1>if</h1>
<input type="button" onclick="chek();" value="check if">
<script>
function chek()
{
if (5 > 3) //This condition is true so if part execute
{
alert("This is alert box");
}
}
</script>
</body>
</html>
What is an if statement:-. Genius student
Reviewed by Network security
on
October 14, 2019
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