Lecture 133:- Loops

Loops in programming are used to execute a block of code repeatedly. They are used to perform operations iteratively or until a certain condition is met. JavaScript has three types of loops:

1. For loop: The for loop is used to execute a block of code repeatedly until a specified condition is met. It consists of an initialization statement, a condition, and an iteration statement. The syntax for the for loop is as follows:

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for (initialization; condition; iteration) {  // code to be executed }

1. While loop: The while loop is used to execute a block of code repeatedly as long as a specified condition is true. It consists of a condition that is checked before each iteration. The syntax for the while loop is as follows:

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while (condition) {  // code to be executed }

1. Do-while loop: The do-while loop is similar to the while loop, except that it executes the code block at least once before checking the condition. The syntax for the do-while loop is as follows:

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do {  // code to be executed } while (condition);

In addition to these basic loops, JavaScript also provides a variety of loop control statements like break, continue, and label, which can be used to control the flow of the loop.