javascript find object by property in array
// To find a specific object in an array of objects
myObj = myArrayOfObjects.find(obj => obj.prop === 'something');javascript find object by property in array
// To find a specific object in an array of objects
myObj = myArrayOfObjects.find(obj => obj.prop === 'something');javascript take first element of array
const array = [1,2,3,4,5];
const firstElement = array.shift();
// array -> [2,3,4,5]
// firstElement -> 1get 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
*/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);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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