@leismore/insert_separator/dist/lib/insert_separator.js

A JavaScript function that converts a string into a series of fixed-length string chunks divided by a given separator.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.insert_separator = void 0;
const ISError_1 = require("./ISError");
/**
 * @param text      {string}   - The text waiting for being added with separators
 * @param size      {int}      - The text chunk length
 * @param separator {string}
 * @returns         {string}   - The text with separators
 * @throws          {ISError}
 *   1  invalid_text
 *   2  invalid_size
 *   3  invalid_separator
 */
function insert_separator(text, size, separator) {
    let parts = [];
    let maxStart;
    if (typeof text !== 'string' || text === '') {
        throw new ISError_1.ISError({ message: 'invalid_text', code: '1' });
    }
    if (typeof size !== 'number' || size < 1) {
        throw new ISError_1.ISError({ message: 'invalid_size', code: '2' });
    }
    else {
        size = Math.round(size);
    }
    if (typeof separator !== 'string' || separator === '') {
        throw new ISError_1.ISError({ message: 'invalid_separator', code: '3' });
    }
    maxStart = (Math.ceil(text.length / size) - 1) * size;
    for (let i = 0, j = 0; j <= maxStart; i++, j += size) {
        parts[i] = text.substr(j, size);
    }
    return parts.join(separator);
}
exports.insert_separator = insert_separator;