js if not undefined
if (typeof myVar !== "undefined") {
console.log("myVar is DEFINED");
}
js if not undefined
if (typeof myVar !== "undefined") {
console.log("myVar is DEFINED");
}
javascript check for undefined
if (typeof myVariable === 'undefined'){
//myVariable is undefined
}
test if is undefined javascript
let id;
if(typeof id === 'undefined') {
console.log("id is undefined...");
}
check undefined in javascript
if (typeof myVariable === 'undefined'){
//myVariable is undefined
}
undefined javascript check
if(undefinedElement === null) {
console.log("Element is undefined");
}
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