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ancyrweb/array_expert_insert_slice.js

Last active January 12, 2022 07:07
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array_expert_insert_slice.js
const elements = [1, 2, 4, 5];
const indexToInsert = 2; // we will append the element at index 2
const elementToInsert = 3; // we will insert the number "3"
const nextElements = [
...elements.slice(0, indexToInsert),
elementToInsert,
...elements.slice(indexToInsert),
]; // [1, 2, 3, 4, 5]
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