JAVASCRIPT

object for loop javascript

const object = { a: 1, b: 2, c: 3 };
// method 1
Object.entries(object).forEach(([key, value]) => {
    console.log(key, value)
});

//method 2
for (const key in object) {
  console.log(key, object[key])
}
// same output
// a 1
// b 2
// c 3

js loop through object

const obj = { a: 1, b: 2 };

Object.keys(obj).forEach(key => {
	console.log("key: ", key);
  	console.log("Value: ", obj[key]);
} );

js loop over object

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

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}

object loop in javascript

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

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}

javascript iterate over object

var person={
 	first_name:"johnny",
  	last_name: "johnson",
	phone:"703-3424-1111"
};
for (var property in person) {
  	console.log(property,":",person[property]);
}

iterate over object javascript

// Looping through arrays created from Object.keys
const keys = Object.keys(fruits)
for (const key of keys) {
  console.log(key)
}

// Results:
// apple
// orange
// pear

loop through object javascript

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

// for-in
for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}

// for-of with Object.keys()
for (var key of Object.keys(p)) {
    console.log(key + " -> " + p[key])
}

// Object.entries()
for (let [key, value] of Object.entries(p)) {
  console.log(`${key}: ${value}`);
}

javascript loop through object

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

loop through object js

var obj = {
  first: "John",
  last: "Doe"
};

//
//	Visit non-inherited enumerable keys
//
Object.keys(obj).forEach(function(key) {

  console.log(key, obj[key]);

});

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"

how to iterate object inside object in javascript

let obj = {
  key1: "value1",
  key2: "value2",
  key3: "value3"
}
for (let key in obj) {
  let value = obj[key];
  console.log(key, value);
}
// key1 value1
// key2 value2
// key3 value3

js loop through object

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

for (const [key, value] of Object.entries(obj)) {
	console.log(key, value)
}

javascript for loop on object

/Example 1: Loop Through Object Using for...in
// program to loop through an object using for...in loop

const student = { 
    name: 'John',
    age: 20,
    hobbies: ['reading', 'games', 'coding'],
};

// using for...in
for (let key in student) { 
    let value;

    // get the value
    value = student[key];

    console.log(key + " - " +  value); 
} 

/Output
	name - John
	age - 20
	hobbies - ["reading", "games", "coding"]

//If you want, you can only loop through the object's
//own property by using the hasOwnProperty() method.

if (student.hasOwnProperty(key)) {
    ++count:
}

/////////////////////////////////////////

/Example 2: Loop Through Object Using Object.entries and for...of
// program to loop through an object using for...in loop

const student = { 
    name: 'John',
    age: 20,
    hobbies: ['reading', 'games', 'coding'],
};

// using Object.entries
// using for...of loop
for (let [key, value] of Object.entries(student)) {
    console.log(key + " - " +  value);
}
/Output
	name - John
	age - 20
	hobbies - ["reading", "games", "coding"]

//In the above program, the object is looped using the
//Object.entries() method and the for...of loop.

//The Object.entries() method returns an array of a given object's key/value pairs.
//The for...of loop is used to loop through an array.

//////////////////////////////////////////////////////////

loop in object javascript

var person = {"name":"Rasel", age:26};

for (var property in person) {
   console.log(person[property]);
}

javascript loop through object

const point = {
	x: 10,
 	y: 20,
};

for (const [axis, value] of Object.entries(point)) {
	console.log(`${axis} => ${value}`);
}

/** prints:
 * x => 10
 * y => 20
 */

loop through javascript object

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}

loop through object javascript

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}

iterate object

    for (key in object) {
      console.log(key,object[key]);
    }

js object loop

var Object = { x:1, y:2, z:3 };
for (property in Object) {
  console.log(Object.property);
};

javascript loop object

for (let thisVariable in thisObject)

Iteration over JS object

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}
 Run code snippetHide results

js object loop

var Object = { x:1, y:2, z:3 };
for (property in Object) {
  console.log(Object.property);
};

js loop through object

let obj = {name: "Mr X", sex: "Yes, 3 times a day"};
for (key in obj) {
	console.log(key, " ", obj[key])
}

javascript looping through object

for (const [fruit, count] of entries) {
  console.log(`There are ${count} ${fruit}s`)
}

// Result
// There are 28 apples
// There are 17 oranges
// There are 54 pears

iterate through object javascript

const myObj = {user1: {username: "alvin", id: 1}, user2: {username: "david", id: 2}}

for(let key in myObj){
   console.log(key, myObj[key])
}
// output
// user1 {username: "alvin",id: 1}
// user2 {username: "alvin",id: 1}

javascript looping through object

const fruits = {
  apple: 28,
  orange: 17,
  pear: 54,
}

const entries = Object.entries(fruits)
console.log(entries)
// [
//   [apple, 28],
//   [orange, 17],
//   [pear, 54]
// ]

javascript loop object

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}
 Run code snippet

iterate over object javascript

// For a functional one-liner
Object.keys(pokemons).forEach(console.log);
// Bulbasaur
// Charmander
// Squirtle
// Pikachu

for loop on object js

// an easy way is to

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

for (const i in obj)
  console.log(obj[i]);

//it is a simple way to loop on values of an object

javascript Iterate Through an Object

const student = {
    name: 'Monica',
    class: 7,
    age: 12
}

// using for...in
for ( let key in student ) {

    // display the properties
    console.log(`${key} => ${student[key]}`);
}

javascript iterate over object

for (variable in object) {   statement }

javascript object loop

const obj = { foo: 'bar', baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]

// array like object
const obj = { 0: 'a', 1: 'b', 2: 'c' };
console.log(Object.entries(obj)); // [ ['0', 'a'], ['1', 'b'], ['2', 'c'] ]

// array like object with random key ordering
const anObj = { 100: 'a', 2: 'b', 7: 'c' };
console.log(Object.entries(anObj)); // [ ['2', 'b'], ['7', 'c'], ['100', 'a'] ]

// getFoo is property which isn't enumerable
const myObj = Object.create({}, { getFoo: { value() { return this.foo; } } });
myObj.foo = 'bar';
console.log(Object.entries(myObj)); // [ ['foo', 'bar'] ]

// non-object argument will be coerced to an object
console.log(Object.entries('foo')); // [ ['0', 'f'], ['1', 'o'], ['2', 'o'] ]

// returns an empty array for any primitive type except for strings (see the above example), since primitives have no own properties
console.log(Object.entries(100)); // [ ]

// iterate through key-value gracefully
const obj = { a: 5, b: 7, c: 9 };
for (const [key, value] of Object.entries(obj)) {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
}

// Or, using array extras
Object.entries(obj).forEach(([key, value]) => {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
});

object loop javascript

 const shots = [
            {id: 1, salary:100,name:'Win Win Maw',position:'junior'},
            {id: 2, salary:130,name:'Mg Mg',position:'junior'},
            {id: 3, salary:200,name:'KO KO',position:'senior'},
            {id: 4, salary:90,name:'Hla Hla',position:'intern'},
            {id: 5,  salary:250,name:'Ni Lar',position:'senior'},
            ];


            //increment Salary by percentage
                let salaries = shots.map((e)=>{
                    return e.salary
                })

                let percent = 5 ;
                salaries.forEach(increaseSalary => {
                    increaseSalary += (increaseSalary * percent) / 100;
                    console.log(increaseSalary);
                }); 

object loop

  const shots = [
            {id: 1, salary:100,name:'Win Win Maw',position:'junior'},
            {id: 2, salary:130,name:'Mg Mg',position:'junior'},
            {id: 3, salary:200,name:'KO KO',position:'senior'},
            {id: 4, salary:90,name:'Hla Hla',position:'intern'},
            {id: 5,  salary:250,name:'Ni Lar',position:'senior'},
            ];

             // over salray 200 People


            let overHPeopele = shots.filter(e => e.salary >= 200).map((e)=>e.name+'->'+e.position);
            console.log('overHPeople',...overHPeopele)

how to looping object JavaScript

// data
let errors ={
    "email":"Password is required",
    "phonenumber":"Password is required",
    "password":"Password is required"
}

//how to loop object
Object.entries(errors).forEach(error => {
  console.log(error)
})

//results
['email', 'Password is required']
['phonenumber', 'Password is required']
['password', 'Password is required']

object loop javascript

const shots = [
            {id: 1, salary:100,name:'Win Win Maw',position:'junior'},
            {id: 2, salary:130,name:'Mg Mg',position:'junior'},
            {id: 3, salary:200,name:'KO KO',position:'senior'},
            {id: 4, salary:90,name:'Hla Hla',position:'intern'},
            {id: 5,  salary:250,name:'Ni Lar',position:'senior'},
            ];

            let maxName = null;
            let maxSalary = 0;
            let maxPositon = null;


            

            
            // maxSalary = shots.reduce((acc, shot) => acc = acc > shot.salary ? acc : shot.salary, 0);

            for(const [salary,position] of Object.entries(shots)){
                if(maxSalary < salary){
                    maxSalary = salary;
                    maxPositon = position
                }
            }
            console.log(maxPositon.name,maxPositon.salary,maxPositon.position);

javascript object loop

const obj = { foo: 'bar', baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]

// array like object
const obj = { 0: 'a', 1: 'b', 2: 'c' };
console.log(Object.entries(obj)); // [ ['0', 'a'], ['1', 'b'], ['2', 'c'] ]

// array like object with random key ordering
const anObj = { 100: 'a', 2: 'b', 7: 'c' };
console.log(Object.entries(anObj)); // [ ['2', 'b'], ['7', 'c'], ['100', 'a'] ]

// getFoo is property which isn't enumerable
const myObj = Object.create({}, { getFoo: { value() { return this.foo; } } });
myObj.foo = 'bar';
console.log(Object.entries(myObj)); // [ ['foo', 'bar'] ]

// non-object argument will be coerced to an object
console.log(Object.entries('foo')); // [ ['0', 'f'], ['1', 'o'], ['2', 'o'] ]

// returns an empty array for any primitive type except for strings (see the above example), since primitives have no own properties
console.log(Object.entries(100)); // [ ]

// iterate through key-value gracefully
const obj = { a: 5, b: 7, c: 9 };
for (const [key, value] of Object.entries(obj)) {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
}

// Or, using array extras
Object.entries(obj).forEach(([key, value]) => {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
});

looping object

for (var prop in p) {
    if (!p.hasOwnProperty(prop)) {
        //The current property is not a direct property of p
        continue;
    }
    //Do your logic with the property here
}

loop in object

const rgb = [255, 0, 0];

// Randomly change to showcase updates
setInterval(setContrast, 1000);

function setContrast() {
  // Randomly update colours
  rgb[0] = Math.round(Math.random() * 255);
  rgb[1] = Math.round(Math.random() * 255);
  rgb[2] = Math.round(Math.random() * 255);

  // http://www.w3.org/TR/AERT#color-contrast
  const brightness = Math.round(((parseInt(rgb[0]) * 299) +
                      (parseInt(rgb[1]) * 587) +
                      (parseInt(rgb[2]) * 114)) / 1000);
  const textColour = (brightness > 125) ? 'black' : 'white';
  const backgroundColour = 'rgb(' + rgb[0] + ',' + rgb[1] + ',' + rgb[2] + ')';
  $('#bg').css('color', textColour); 
  $('#bg').css('background-color', backgroundColour);
}