Answers for "js value if undefined"

js if not undefined

if (typeof myVar !== "undefined") {
    console.log("myVar is DEFINED");
}

Posted by: Guest on October-23-2019

Javascript check if undefined

if (typeof myVariable === 'undefined'){
    //myVariable is undefined
}

Posted by: Guest on July-22-2019

js check if undefined

let foo = undefined
//will return true
typeof foo === 'undefined'

Posted by: Guest on July-15-2020

javascript test if undefined

if (angular.isDefined(var){
    //myVariable is undefined
}

Posted by: Guest on June-07-2021

Code answers related to "js value if undefined"