For Loop in JavaScript
A for loop in JavaScript repeatedly executes a block of code as long as a specified condition is true. It includes initialization, condition checking, and iteration steps, making it efficient for controlled, repetitive tasks.
Syntax:
for (statement 1 ; statement 2 ; statement 3){
code here...
}
- Statement 1: It is the initialization of the counter. It is executed once before the execution of the code block.
- Statement 2: It defines the testing condition for executing the code block
- Statement 3: It is the increment or decrement of the counter & executed (every time) after the code block has been executed.
Example:
// JavaScript program to illustrate for loop
let x;
// for loop begins when x=2
// and runs till x <=4
for (x = 2; x <= 4; x++) {
console.log("Value of x:" + x);
}
Output:
Value of x:2
Value of x:3
Value of x:4
JavaScript For Loop
JavaScript for loop is a control flow statement that allows code to be executed repeatedly based on a condition. It consists of three parts: initialization, condition, and increment/decrement. This loop iterates over a code block until the specified condition is false.