Answers for "javascript names an object based on for loop through"

12

javascript loop through object

// object to loop through
let obj = { first: "John", last: "Doe" };

// loop through object and log each key and value pair
//ECMAScript 5
Object.keys(obj).forEach(function(key) {
    console.log(key, obj[key]);
});

//ECMAScript 6
for (const key of Object.keys(obj)) {
    console.log(key, obj[key]);
}

//ECMAScript 8
Object.entries(obj).forEach(
    ([key, value]) => console.log(key, value)
);

// OUTPUT
/*
   first John
   last Doe
*/
Posted by: Guest on May-12-2020
3

javascript loop through object properties

for (var prop in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, prop)) {
        // do stuff
    }
}
Posted by: Guest on April-13-2020

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