Check uncheck checkbox with Javascript Jquery or vanilla

Question

Can anyone tell me how to check/uncheck checkbox using JavaScript?

Answer 1

Please check the code below:

JavaScript code: 

// Check

document.getElementById("checkbox").checked = true;

// Uncheck

document.getElementById("checkbox").checked = false;

JQuery(versions above 1.6+): 

// Check

$("#checkbox").prop("checked", true);

// Uncheck

$("#checkbox").prop("checked", false);

For JQuery versions below 1.5- : 

// Check

$("#checkbox").attr("checked", true);

// Uncheck

$("#checkbox").attr("checked", false);

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