JavaScript white Loop

 

The While Loop

The while loop loops through a block of code as long as a specified condition is true.

Syntax

while (condition) {
  // code block to be executed
}

Example

In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less than 10:

Example

while (i < 10) {
  text += "The number is " + i;
  i++;
}

The Do While Loop

The do while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

Syntax

do {
  // code block to be executed
}
while (condition);

Example

do {
  text += "The number is " + i;
  i++;
}
while (i < 10);