Looping in JavaScript

In JavaScript, you can use loops to execute a block of code multiple times.

The for loop is used to execute a block of code a specified number of times.

Example:

for (let i = 0; i < 10; i++) {
  console.log(i);
}

This will print the numbers from 0 to 9.

The while loop is used to execute a block of code as long as a condition is true.

Example:

let i = 0;
while (i < 10) {
  console.log(i);
  i++;
}

This will also print the numbers from 0 to 9.

The do...while loop is similar to the while loop, but it guarantees that the block of code will be executed at least once.

Example:

var i = 0;
do {
  console.log(i);
  i++;
} while (i < 10);

This will also print the numbers from 0 to 9.

In JavaScript, you can also use the break and continue statements to control the flow of the loop. The break statement is used to exit the loop, and the continue statement is used to skip the rest of the current iteration and move to the next one.

Example:

for (let i = 0; i < 10; i++) {
  if (i % 2 == 0) continue;  // skip even numbers
  if (i > 5) break;         // exit loop when i is greater than 5
  console.log(i);            // prints 1, 3, 5
}