how to check wether the property exist in a object in java script
if (obj.hasOwnProperty('prop')) {
// do something
}how to check wether the property exist in a object in java script
if (obj.hasOwnProperty('prop')) {
// do something
}javascript hasownproperty
var person = {
"first_name": "Bob",
"last_name": "Dylan"
};
person.hasOwnProperty('first_name'); //returns true
person.hasOwnProperty('age'); //returns falsejs check if object has property
const object1 = new Object();
object1.property1 = 42;
console.log(object1.hasOwnProperty('property1'));
// expected output: truejavascript does object have property
var person = {'first_name': 'bill','age':20};
if ( person.hasOwnProperty('first_name') ) {
//person has a first_name property
}Copyright © 2021 Codeinu
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