find element in array javascript
const simpleArray = [3, 5, 7, 15];
const objectArray = [{ name: 'John' }, { name: 'Emma' }]
console.log( simpleArray.find(e => e === 7) )
// expected output 7
console.log( simpleArray.find(e => e === 10) )
// expected output undefined
console.log( objectArray.find(e => e.name === 'John') )
// expected output { name: 'John' }javascript take first element of array
const array = [1,2,3,4,5];
const firstElement = array.shift();
// array -> [2,3,4,5]
// firstElement -> 1javascript find object in array
myArray.findIndex(x => x.id === '45');array find
const array1 = [5, 12, 8, 130, 44];
const found = array1.find(element => element > 10);
console.log(found);
// expected output: 12js array find
var ages = [3, 10, 18, 20];
function checkAdult(age) {
return age >= 18;
}
/* find() runs the input function agenst all array components
till the function returns a value
*/
ages.find(checkAdult);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 }Copyright © 2021 Codeinu
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