javascript find
const inventory = [
{name: 'apples', quantity: 2},
{name: 'cherries', quantity: 8}
{name: 'bananas', quantity: 0},
{name: 'cherries', quantity: 5}
{name: 'cherries', quantity: 15}
];
const result = inventory.find( ({ name }) => name === 'cherries' );
console.log(result) // { name: 'cherries', quantity: 5 }javascript take first element of array
const array = [1,2,3,4,5];
const firstElement = array.shift();
// array -> [2,3,4,5]
// firstElement -> 1javascript get first element of array
let array = [1,2,3] // makes your array
array[0] // returns first element of your array.get first element of array javascript
// Method - 1 ([] operator)
var arr = [1, 2, 3, 4, 5];
var first = arr[0];
console.log(first);
/*
Output: 1
*/
// Method - 2 (Array.prototype.shift())
var arr = [1, 2, 3, 4, 5];
var first = arr.slice(0, 1).shift();
console.log(first);
/*
Output: 1
*/
// Method - 3 (Destructuring Assignment)
var arr = [1, 2, 3, 4, 5];
const [first] = arr;
console.log(first);
/*
Output: 1
*/find method javascript
const inventory = [
{name: 'apples', quantity: 2},
{name: 'bananas', quantity: 0},
{name: 'cherries', quantity: 5}
];
function isCherries(fruit) {
return fruit.name === 'cherries';
}
console.log(inventory.find(isCherries));
// { name: 'cherries', quantity: 5 }javascript find first element of array
let array = ["a", "b", "c", "d", "e"];
// Both first1 and first2 have the same value.
let [first1] = array;
let first2 = array[0];Copyright © 2021 Codeinu
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