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How to use setInterval In Javascript

Using setTimeout

Difference between setTimeout and setInterval

setInterval is another function in JavaScript used to execute a piece of code or a function repeatedly at a fixed interval. It allows you to execute a function repeatedly with a specified time delay between each execution.

Syntax:

setInterval(function, delay);

Example: To demonstrate printing the time at interval of 1 seconds.

JavaScript 
function displayTime() {
    console.log(new Date().toLocaleTimeString());
}


// Executes displayTime function every second
setInterval(displayTime, 1000);

Output:

Output

Difference Between setTimeout & setInterval in JavaScript

JavaScript has both setTimeout and setInterval functions that are used for executing code after a certain delay. However, they differ in how they handle the timing of execution. Understanding their differences is crucial for effectively managing asynchronous operations in our code which is explained below:

Table of Content

  • Using setTimeout
  • Using setInterval
  • Difference between setTimeout and setInterval

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Using setTimeout

setTimeout is a function in JavaScript used to execute a piece of code or a function after a specified delay. It allows you to execute a function only once after a certain amount of time has passed....

Using setInterval

setInterval is another function in JavaScript used to execute a piece of code or a function repeatedly at a fixed interval. It allows you to execute a function repeatedly with a specified time delay between each execution....

Difference between setTimeout and setInterval

Feature setTimeout setInterval Execution Executes function once after delay Executes function repeatedly Interval Executes function only once Repeatedly executes function Timing Control Delay specified for single execution Interval specified for repeated executions Usage Ideal for executing code once Ideal for executing code Clears clearTimeout() method can be used to cancel scheduled execution clearInterval() method can be used to stop further executions Example setTimeout(function, delay); setInterval(function, delay);...

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Using setTimeout

Difference between setTimeout and setInterval