1.基本知识点 //创建一个对象并初始化它 var preInitArray = new Array("First Item", "Second Item", "Third Item"); for (var i = 0; i < preInitArray.length; i++) { console.log(preInitArray[i]); }
function compareObjects(obj1, obj2) { const differences = {}; function diff(o1, o2, path = '') { if (typeof o1 !== typeof o2) { differences[path] = { expected: o1, actual: o2 }; } else if (Array.isArray(o1) && Array.isArray(o2)) { o1.forEach((item, index...
* @returns {boolean} Returns `true` if `value` is a host object, else `false`.*///判断value是否是一个宿主对象,在IE9以下的浏览器中functionisHostObject(value) {//Many host objects are `Object` objects that can coerce to strings//despite having improperly defined `toString` methods.//很多...
bitmask |= UNORDERED_COMPARE_FLAG; // Recursively compare objects (susceptible to call stack limits). stack.set(object, other); // 调用的是数组比较方法,object和other为set或者map,将之转换成数组。再去比较。 var result = equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask...
This performs a series of replacements in a string, using the items within an object/array. Just a quicker/easier way than chaining .replace() over and over again. The replacements can be an array of arrays, an array of objects, or an object...
es-toolkit offers key utility functions similar to Lodash, covering areas like functions, arrays, objects, strings, math, predicates, and promises es-toolkit’s functions are often faster than Lodash’s because they use modern JavaScript APIs in their implementations and TypeScript for type checking...
unionWith var_=require('lodash');varobjects=[{'x':1,'y':1},{'x':1,'y':2}];varothers=[{'x':2,'y':1},{'x':1,'y':2}];varresult=_.unionWith(objects,others,_.isEqual);console.log(result); Save the above program intester.js. Run the following command to execute this ...
Safely find nested values without crashing on invalid intermediate objects _.get({ a: { b: 2}}, "b") ' => 2 Safely compare types for equality, capturing TYPE_MISMATCH runtime errors _.equal(invalid, "a") ' => false Write complex objects to the registry without manually serializing ...
Lodash focuses on providing core features that are frequently used for JavaScript built-in objects, including: Arrays Objects Functions Strings Some of those features may have been included in the latest version of ECMAScript specification. Some platforms may have also implemented extra features. If ...
Three of them are Angular, jQuery, and Lodash. Lodash is a library of utilities for manipulating and examining objects, arrays, numbers, strings, etc.To make the most of your interactive website, it needs to be fast and responsive and should be able to automatically adjust to look good on...