while Loops

The most basic type of looping in JavaScript is the while loop. A while loop tests an expression and continues to execute the code contained in its {} brackets until the expression evaluates to false.

For example, the following while loop executes until i is equal to 5:

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var i = 1;
while (i<5){
  console.log("Iteration " + i);
  i++;
}

This example sends the following output to the console:

Iteration 1
Iteration 2
Iteration 3
Iteration 4