Answers for "check if a an object property exists 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
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

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