Answers for "object for"

3

javascript loop through object

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

// Loop using forEach
arr.forEach((item, index) => {
    // TODO
})

// Loop using for...of
for (const item of arr) {
    await something()
}

// Clone new array (not changing the old one)
const arr = [1,2,3]
const newArray = arr.map(item => item * 2)
console.log(newArray)

// Filter array by condition
const arr = [1,2,3,1]
const newArray = arr.filter(item => {
    if (item === 1) { return item }
})
console.log(newArray)

// Join array
const arr1 = [1,2,3]
const arr2 = [4,5,6]
const arr3 = [...arr1, ...arr2]
console.log(arr3)

// Get a property of object
const { email, address } = user
console.log(email, address)

// Copy object/array
const obj = { name: 'my name' }
const clone = { ...obj }
console.log(obj === clone)
Posted by: Guest on April-12-2020
0

for in object javascript

var obj = { foo: 'bar', baz: 42 };

Object.keys(obj).forEach((key) => {
    const el = obj[key];
    console.log(
      {
        key: key,
        value: el
      }
    );
});
Posted by: Guest on February-13-2021
2

js for in object

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

for(const [i, val] of Object.entries(obj))
	new_obj[i] = val;
Posted by: Guest on February-10-2021
4

for in javascript

for (let i = start; i < end; i++) {

}
Posted by: Guest on October-05-2020

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