throw new error

But there is no corresponding mechanism in JavaScript, but JavaScript is very flexible, we can use its features to imitate interface, but we need to add some methods to do check action We can still use programs to simulate the implementation of

This section is mainly about the implementation of read-write locks.As mentioned in the previous section, Readwritelock appears to have two locks: readlock/writelock. If it's really two locks, how do they affect each other?In fact, the realization

One of the most common technical tools for implementing control reversal in object-oriented programming (inversion, hereinafter called IOC) is that dependency injection (Dependency injection, hereinafter called DI) is a great way to go in OOP

This paper analyzes the use of try...catch...finally in JavaScript, and share it for everyone's reference, the specific contents are as follows A little more complex a little bit, it is necessary to use the judgment statement, if else to make

Front. Error handling is critical for Web application development, not anticipating possible errors in advance, not taking a recovery strategy in advance, and potentially leading to a poor user experience. Because any JavaScript error can cause a

/*---------------------------------------------------------------------------*\ | Subject:javascript Framework | Author:meizz | Created:2005-02-27 | Version:2006-08-11 |----------------------------------- | Msn:huangfr@msn.com qq:112889082 |

Today's blog post focuses on the encapsulation in javascript. The content of this article comes from projavascriptdesignpatterns (if you are interested, you can directly go down) and your understanding of this issue. This article is divided into two

From C # to typescript-promise backgroundsI believe that friends who have used JavaScript before have encountered asynchronous callback Hell (callback Hell), n multiple callback nesting not only makes the code read very difficult, maintenance is

Details about binary tree traversal in JS, and details about the js Binary Tree calendar A binary tree consists of a root node, a left subtree, and a right subtree. The left subtree and a friend subtree are a binary tree respectively.This article

This article is divided into two parts: basic patterns (upper part): full exposure, underline marking, and closure. Advanced Patterns (lower part ), there are other knowledge points about how to implement static methods and attributes and constants.

JavaScript: adapter mode in Design ModeIntroduction The Adapter mode converts an interface (method or attribute) of a class (object) to another interface (method or attribute) that the customer wants ), the adapter mode makes it possible for classes

function parseXml(xml){ var xmldom = null; if(typeof DOMParser!="undefined"){ xmldom = (new DOMParser()).parseFromString(xml,"text/xml"); var errors = xmldom.getElementsByTagName("parsererror"); if(errors.length){

Today's blog post focuses on the encapsulation in javascript. The content of this article comes from "pro javascript design patterns" (if you are interested, you can go directly to the next article) and your understanding of this issue.This article

This article mainly introduces binary tree traversal in JS, what is binary tree and what is binary tree traversal. If you are interested, refer to the binary tree is composed of the root node and the left subtree, the right subtree is composed of a

JavaScript authoritative Guide To learn notes, Forbidden reprint!6. FunctionsFunction Call Method:Direct call: foo ();Method invocation as an object: Obj.method ();New:new Foo ();Call/apply/bind:func.call (obj);If there is no return statement in the

First, we need to consider the layout of its source files, which is how the code splits into separate files. Why would you do that? Remember when I mentioned at the end of the last period that this component would use "External code"? To

The binary tree is composed of the root node, the left subtree and the right subtree, and the Zuozi and the friend subtree are a binary tree respectively.This article is mainly in JS to implement the two-fork tree traversal. Example of a binary

If you're looking for a mobile phone to learn more about Docker, then this is your best bet. In this article, I'll show you how Docker works, and the application Docker completes building a basic micro-service development task. We will use a simple

Private Methods and propertiesIn JavaScript, because there is no concept of classes, you can only simulate classes by using constructors, assuming that you now need to write a phone class that needs to pass in a phone number and then call. The

The currying function is a function that returns a function and is one of the greatest applications of a closure. For more detailed definitions of closures, see here and here. The following is a definition of the currying function. The earliest