javascript loop through object
Object.entries(obj).forEach(
([key, value]) => console.log(key, value)
);
javascript loop through object
Object.entries(obj).forEach(
([key, value]) => console.log(key, value)
);
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
*/
how to loop object javascript
var obj = {a: 1, b: 2, c: 3};
for (const prop in obj) {
console.log(`obj.${prop} = ${obj[prop]}`);
}
// Salida:
// "obj.a = 1"
// "obj.b = 2"
// "obj.c = 3"
object loop in javascript
const object = { a: 1, b: 2, c: 3 };
for (const property in object) {
console.log(`${property}: ${object[property]}`);
}
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"
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
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