Answers for "how to check if an object has a specific property in javascript"

9

how to check wether the property exist in a object in java script

if (obj.hasOwnProperty('prop')) {
    // do something
}
Posted by: Guest on May-26-2020
6

js check if object has property

const object1 = new Object();
object1.property1 = 42;

console.log(object1.hasOwnProperty('property1'));
// expected output: true
Posted by: Guest on April-13-2020
2

check the properties of an object in javascript

for (var name in object) {  
    if (object.hasOwnProperty(name)) { 
        // do something with name                    
    }  
}

// OR

const hero = {
  name: 'Batman'
};

hero.hasOwnProperty('name');     // => true
hero.hasOwnProperty('realName'); // => false
Posted by: Guest on December-08-2020
1

javascript check for property

const hero = {
  name: 'Batman'
};

hero.hasOwnProperty('name');     // => true
hero.hasOwnProperty('realName'); // => false
Posted by: Guest on November-23-2020
4

javascript does object have property

var person = {'first_name': 'bill','age':20};

if ( person.hasOwnProperty('first_name') ) {
    //person has a first_name property
}
Posted by: Guest on July-23-2019

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