ut2/lib/shallowEqual.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var eq = require('./eq.js');
var native = require('./internals/native.js');

function shallowEqual(objA, objB, strictCheck) {
    if (strictCheck === void 0) { strictCheck = true; }
    if (eq(objA, objB, strictCheck)) {
        return true;
    }
    if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
        return false;
    }
    var keysA = Object.keys(objA);
    var keysB = Object.keys(objB);
    if (keysA.length !== keysB.length) {
        return false;
    }
    for (var i = 0; i < keysA.length; i++) {
        var key = keysA[i];
        if (!native.objectProtoHasOwnProperty.call(objB, key) || !eq(objA[key], objB[key], strictCheck)) {
            return false;
        }
    }
    return true;
}

module.exports = shallowEqual;