Answers for "javascript for loop for object"

85

javascript loop through object

Object.entries(obj).forEach(
    ([key, value]) => console.log(key, value)
);
Posted by: Guest on February-15-2020
11

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
2

how to loop object javascript

var obj = {a: 1, b: 2, c: 3};

for (const prop in obj) {
  console.log(`obj.${prop} = ${obj[prop]}`);
}

// Salida:
// "obj.a = 1"
// "obj.b = 2"
// "obj.c = 3"
Posted by: Guest on May-15-2020
3

object loop in javascript

const object = { a: 1, b: 2, c: 3 };

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}
Posted by: Guest on June-20-2020
9

for of loop javascript

const array1 = ['a', 'b', 'c'];

for (const element of array1) {
  console.log(element);
}

// expected output: "a"
// expected output: "b"
// expected output: "c"
Posted by: Guest on March-02-2020
3

for in loop javascript

let array = [1,2,3,4,5,6,7,8,9,10]; 
// our array that we will use the for loop on
for (let i = 0; i < array.length; i++) { 
  // this loop will console log the element at array[i] starting at 0
  // and will continue looping for i < array.length 
  console.log(array[i]);
  // after each loop i will increase by 1
}

// this will console log
// 1
// 2
// 3
// 4
// 5
// 6
// 7
// 8
// 9
// 10
Posted by: Guest on October-30-2020

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