Loops in Javascript iterate the code and we don't need to write similar things again and again. Instead, loops do this for us.

There are five types of loops in Javascript and all are mentioned below -

• For Loop
• While Loop
• do While Loop
• for in Loop
• for of Loop

The concept of loops can be understood by an example that we have to search for fruit in the fruit basket. So, we don't mess up all the fruits rather we just check one fruit and verify that is it the search one.

For Loop

The For Loop in Javascript iterates a code over a particular number of times. The syntax of the for loop is mentioned below -

for(initialization, condition, updation){ //code block }

The code showing the working of the For Loop is mentioned below -

for(let i = 0; i<=3; i++){ console.log(i); }
//Output: 1 2 3

While Loop

The While Loop iterates until the condition becomes true. The code showing the working of the while loop is mentioned below -

var i = 10; while(i < 15) { i++; console.log(i) }
//Output: 11 12 13 14 15

Do While Loop

The code in the do keyword must be executed once and after one iteration it will react the same as that of the Do While Loop.

The code initiating the working of While Loop is mentioned below -

var i = 10; do { i++; console.log(i) } while(i < 15)
//Output: 10 11 12 13 14

##for in loop The `For in Loop` in Javascript is used to iterate through the properties of an object. The code showing the working of `For in Loop` is mentioned below -

const person = {name: "Robert", country: "USA", age:25}; let text = ""; for (let x in person) { text += person[x]; }
//Output: Robert USA 25

For of Loop

The For of Loop in javascript is used for iterating through the values of iterable objects.

The code showing the working of the For Of Loop is mentioned below -

let tech = "web"; let result = ""; for (let result of tech) { result += result; }
//Output: w e b

Continue Keyword

The continue keyword doesn't stop the execution of the loop but it stops the execution of the current iteration and starts the next iteration. The code example for the same is mentioned below -

for (let i = 0; i < 10; i++) { if (i % 2 == 0) continue; console.log(i) }
//Output: 1,4,6,8