JavaScript while Loop
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JavaScript while Loop
The while loop executes a block of code as long as the test condition evaluates to true.
Note: Unlike do while loop, In while loop, the condition is evaluated before executing the statement.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p>This while loop will execute 6 times.</p>
<p id="point"></p>
<script>
var x = document.getElementById("point");
var i = 0;
var txt = "";
while(i <= 5){
txt += i;
i++;
}
x.innerText = txt;
</script>
</body>
</html>
Syntax
while(condition){
// code block
}
More Examples
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p>This while loop will execute 4 times.</p>
<p id="point"></p>
<script>
var x = document.getElementById("point");
var bike = ["KTM", "Honda", "Yamaha", "BMW"];
var i = 0;
var txt = "";
while(i < bike.length){
txt += bike[i] +"<br>";
i++;
}
x.innerHTML = txt;
</script>
</body>
</html>
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