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' }js 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);js array find
const myArray = ["sun","moon","earth"];
const lookingFor = "earth"
console.log(myArray.find(planet => { return planet === lookingFor })
// expected output: earthjavascript 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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