Example 1: how to get value in array object value using for loop in javascript
const myArray = [{x:100}, {x:200}, {x:300}];
const newArray= myArray.map(element => element.x);
console.log(newArray);
Example 2: how to read 2 dimensional array in javascript
activities.forEach((activity) => {
activity.forEach((data) => {
console.log(data);
});
});
Example 3: nested array loop in javascript
let chunked = [[1,2,3], [4,5,6], [7,8,9]];
for(let i = 0; i < chunked.length; i++) {
for(let j = 0; j < chunked[i].length; j++) {
console.log(chunked[i][j]);
}
}
Example 4: multi-dimensional array js
var array = [
["0, 0", "1, 0", "2, 0", "3, 0", "4, 0"],
["0, 1", "1, 1", "2, 1", "3, 1", "4, 1"],
["0, 2", "1, 2", "2, 2", "3, 2", "4, 2"],
["0, 3", "1, 3", "2, 3", "3, 3", "4, 3"],
["0, 4", "1, 4", "2, 4", "3, 4", "4, 4"],
];
console.log(array[3][3]);
Example 5: how to get value in array object value using for loop in javascript
const people = [
{name: 'John', age: 23},
{name: 'Andrew', age: 3},
{name: 'Peter', age: 8},
{name: 'Hanna', age: 14},
{name: 'Adam', age: 37}];
const anyAdult = people.some(person => person.age >= 18);
console.log(anyAdult);