Javascript check if undefined
if (typeof myVariable === 'undefined'){
//myVariable is undefined
}Javascript check if undefined
if (typeof myVariable === 'undefined'){
//myVariable is undefined
}if type undefined
if (typeof input !== "undefined") {
// do stuff
}typescript check undefined
if(myvar === undefined){
console.log("I am undefined.");
}typescript null and undefined check
if(!!someValue)typescript check if a value is undefined
if(var === undefined) //statementtypescript null and undefined check
let x = foo?.bar.baz();Copyright © 2021 Codeinu
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