How to use forEach with an Object in JavaScript?
The forEach() method has some really great applications. You can use forEach() to loop through objects and arrays or run a function against each item in a collection. This is really important if you're not using jQuery and don't have access to a native $.each() method. There are plenty of ways that you can use forEach() in JavaScript, this quick guide will help you out!
foreach object javascript
By 
krylic
on Sep 30, 2020
krylic
on Sep 30, 2020
const students = {
adam: {age: 20},
kevin: {age: 22},
};
Object.entries(students).forEach(student => {
// key: student[0]
// value: student[1]
console.log(`Student: ${student[0]} is ${student[1].age} years old`);
});
/* Output:
Student: adam is 20 years old
Student: kevin is 22 years old
*/8
javascript loop through object
By Bald Eagle
on Sep 09, 2019
Bald Eagle
on Sep 09, 2019
for (var property in object) {
if (object.hasOwnProperty(property)) {
// Do things here
}
}
14
foreach object javascript
By AlexOp
on Oct 02, 2020
AlexOp
on Oct 02, 2020
const obj = {
name: 'Jean-Luc Picard',
rank: 'Captain'
};
// Prints "name Jean-Luc Picard" followed by "rank Captain"
Object.entries(obj).forEach(entry => {
const [key, value] = entry;
console.log(key, value);
});Source: masteringjs.io
2
foreach object javascript
By TigerYT
on Dec 30, 2020
TigerYT
on Dec 30, 2020
/* Answer to: "foreach object javascript" */
const games = {
"Fifa": "232",
"Minecraft": "476"
"Call of Duty": "182"
};
Object.keys(games).forEach((item, index, array) => {
let msg = `There is a game called ${item} and it has sold ${games[item]} million copies.`;
console.log(msg);
});
/*
The foreach statement can be used in many ways and with object can make
development a lot easier.
A link for for more information on this can be found below and in the source:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
*/Source: developer.mozilla.org
2
foreach object javascript
By RWL_Dittrich
on Oct 07, 2020
RWL_Dittrich
on Oct 07, 2020
const obj = {
a: "aa",
b: "bb",
c: "cc",
};
//This for loop will loop through all keys in the object.
// You can get the value by calling the key on the object with "[]"
for(let key in obj) {
console.log(key);
console.log(obj[key]);
}
//This will return the following:
// a
// aa
// b
// bb
// c
// cc1
foreach object javascript
By Codeblock
on Mar 27, 2020
Codeblock
on Mar 27, 2020
Add thisvar p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]);
}
}Source: stackoverflow.com
2
The approach we're going to take here is using the Workbox.js Library - with this library we can use forEach() to iterate and run a piece of code for each object in an array.
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