@arrows/array/insert_.js

Functional tools for JS arrays

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.insert_ = void 0;
const curry_1 = require("@arrows/composition/curry");
const _insert_ = (value, index, arr) => {
    return index >= arr.length
        ? arr.concat([value])
        : arr
            .slice(0, index)
            .concat([value])
            .concat(arr.slice(index));
};
/**
 * Creates a new array with an additional value at the provided index.
 * Shifts old values to the right.
 * If the index is out of bound of the array - adds a value as a last element.
 *
 * @param value Additional value
 * @param index Specific index
 * @param arr Initial array
 * @returns New array
 */
const insert_ = curry_1.default(_insert_);
exports.insert_ = insert_;
exports.default = insert_;