Loops and iterations allow you to repeat a process quickly and efficiently. The two most commonly used forms are for and while loops.

1. for loops looks like this:

for (initialExpression; conditional; incrementalExpression) {
    ...statements;
}

Here is an example for statement:

// a "for" loop
for (let i = 0; i < 10; i++) {
    console.log("Hello!")
}

2. while loops are similar in nature. They look like this:

initialExpression;
while (conditional) {
    ...statements;
    incrementalExpression;
}

And here is an example:

// a "while" loop
let i = 0;
while (i < 10) {
    console.log("Goodbye!");
    i++;
}

As long as the conditional is true, the loop will continue to repeat. If the conditional is false, the loop will exit. Notice how both types of loops use the same pieces, just organized in a different manner.

You can use > (greater than), < (less than), >= (greater than or equal to), <= (less than or equal to), === (equal to), !== (not equal to) in your conditionals.

Running the accompanying code will print the integers 0 through 99 to the console.

1. Change the code to print the integers 0 to 100.

• There is a whole series of dedicated to Arrays. We encourage you to complete these exercises before finishing this exercise. Once you are more comfortable, return here to continue.