Answers for "javascript variable defined or not"

javascript check if variable exists

if (typeof myVar !== 'undefined') {
    // myVar is defined
}

Posted by: Guest on July-23-2019

javascript set variable if not defined

var x = (typeof x === 'undefined') ? your_default_value : x;

Posted by: Guest on July-28-2020

Code answers related to "javascript variable defined or not"