---
title: "How to set all checkboxes to true using JavaScript?"  
description: "How to set all checkboxes to true using JavaScript?"  
author: "Chris Anderson"  
published: 2011-10-17  
updated: 2020-09-17  
canonical: https://www.mindstick.com/interview/1298/how-to-set-all-checkboxes-to-true-using-javascript  
category: "javascript"  
tags: ["javascript"]  
reading_time: 1 minute  

---

# How to set all checkboxes to true using JavaScript?

//select all input tags\
function SelectAll() {\
var checkboxes = document.getElementsByTagName("input");\
for(i=0;i<checkboxes.length;i++) {\
if(checkboxes.item(i).attributes["type"].value == "checkbox") {\
checkboxes.item(i).checked = true;\
}\
}\
}

## Answers

### Answer by Chris Anderson

//select all input tags\
function SelectAll() {\
var checkboxes = document.getElementsByTagName("input");\
for(i=0;i<checkboxes.length;i++) {\
if(checkboxes.item(i).attributes["type"].value == "checkbox") {\
checkboxes.item(i).checked = true;\
}\
}\
}


---

Original Source: https://www.mindstick.com/interview/1298/how-to-set-all-checkboxes-to-true-using-javascript

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.