ts_temp/is/equal.js

import curry from '../function/curry';
import isArray from './array';
const isEqualNativeTypes = (test1, test2) => test1.toString() === test2.toString();
const isEqualArrays = (test1, test2) => {
    const len = test1.length;
    if (len !== test2.length) {
        return false;
    }
    for (let i = 0; i < len; i++) {
        if (!isEqual(test1[i], test2[i])) {
            return false;
        }
    }
    return true;
};
const isEqualObjects = (test1, test2) => {
    const keys = Object.keys(test1);
    const len = keys.length;
    if (len !== Object.keys(test2).length) {
        return false;
    }
    for (let i = 0; i < len; i++) {
        const key = keys[i];
        if (!(Object.prototype.hasOwnProperty.call(test2, key) && isEqual(test1[key], test2[key]))) {
            return false;
        }
    }
    return true;
};
/**
 * Returns `true` if its arguments are equivalent, `false` otherwise.
 *
 * @param {*} test1
 * @param {*} test2
 * @return {Boolean}
 * @example
 *
 *      isEqual(1, 1); //=> true
 *      isEqual(1, '1'); //=> false
 *      isEqual([1, 2, 3], [1, 2, 3]); //=> true
 *      isEqual({ a: { b: 1 }}, { a: { b: 1 }}); //=> true
 */
const isEqual = (test1, test2) => {
    if (test1 === test2) {
        return true;
    }
    if (typeof test1 !== typeof test2 || test1 !== Object(test1) || !test1 || !test2) {
        return false;
    }
    if (isArray(test1) && isArray(test2)) {
        return isEqualArrays(test1, test2);
    }
    const test1ToString = Object.prototype.toString.call(test1);
    if (test1ToString === '[object Object]' && Object.prototype.toString.call(test2) === test1ToString) {
        return isEqualObjects(test1, test2);
    }
    if (typeof test1 === 'function') {
        return test1 === test2;
    }
    return isEqualNativeTypes(test1, test2);
};
export default curry(isEqual);