miz/lib/mockers/random/index.js

Generate mock data, just like a person.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.randomString = exports.randomChar = exports.randomBool = exports.randomFloat = void 0;
var CHARS = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_$';
/**
 * 四舍五入一个数字，可以指定小数位
 * @param number
 * @param fixed
 * @returns {number}
 */
function round(number, fixed) {
    var t = Math.pow(10, fixed);
    return Math.round(number * t) / t;
}
/**
 * random a number.
 * @param min
 * @param max
 * @param fixed
 * @returns {*}
 */
function randomFloat(min, max, fixed) {
    if (fixed === void 0) { fixed = 0; }
    if (min > max) {
        // swap them with xor
        min = min ^ max;
        max = min ^ max;
        min = min ^ max;
    }
    return round(Math.random() * (max - min) + min, fixed);
}
exports.randomFloat = randomFloat;
/**
 * random boolean.
 * @returns {boolean}
 */
function randomBool() {
    return !!randomFloat(0, 1);
}
exports.randomBool = randomBool;
/**
 * random a char.
 * @returns {*}
 */
function randomChar() {
    return CHARS[randomFloat(0, CHARS.length - 1)];
}
exports.randomChar = randomChar;
/**
 * random a string.
 * @param len
 * @returns {string}
 */
function randomString(len) {
    if (len < 0)
        len = 0;
    return new Array(len).fill(0).map(function () { return randomChar(); }).join('');
}
exports.randomString = randomString;