For Loops
Explore how to use for loops in JavaScript to execute code a specific number of times. Learn about loop initialization, conditions to continue or terminate loops, and how to update variables within iterations. This lesson helps you gain a clear understanding of for loop mechanics and variations.
In this lesson, we will see a type of loop that offers a more controlled approach, the for loops.
for loops
for loops let you do a certain number of iterations. The number of iterations is defined within the definition of a for loop along with the initialization of variables for the loop.
Within a for loop, you have three statements each separated by a ;. Each statement is as follows:
initializer: This is executed only once. This is where variables are usually initialized for the loop and can be optional.