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What are JavaScript unit tests used for?

In JavaScript, unit testing is a test for correctness testing of program modules (the smallest unit of software design). Its goal is to isolate program modules and prove that these individual modules are correct. Unit testing ensures that problems are discovered early in the development process and allows programmers to easily check whether snippets of code are still working properly.

Jun 22, 2021 pm 03:44 PM

JavaScript 单元测试

10 popular PHP books

This article will introduce to you 10 popular PHP books. The purpose is to comprehensively recommend 10 PHP books, which have certain reference value. Friends in need can refer to them. I hope it will be helpful to everyone.

Jun 17, 2021 am 09:40 AM

php书籍推荐

There are several types of html doctypes

There are 8 types: 1. HTML5 version; 2. HTML 4.01 strict version; 3. HTML 4.01 transitional version; 4. HTML 4.01 framework version; 5. XHTML 1.0 strict version; 6. XHTML 1.0 transitional version; 7. XHTML 1.0 framework version ;8. XHTML version 1.1.

Jun 15, 2021 pm 03:19 PM

html doctype

What are the three ways to create objects in javascript

The method is: 1. Use built-in objects, JavaScript language native objects or runtime host objects; 2. Use JSON notation, using a simple collection of "key/value pairs" or an ordered value list; 3. Custom objects Construct, using the "this" keyword or using the prototype prototype.

Jun 09, 2021 pm 04:35 PM

JavaScript 创建对象

Selected 3 interview questions to help you understand PHP's garbage collection mechanism! !

This article will share with you advanced interview questions about the PHP garbage collection mechanism, and give you an in-depth understanding of the PHP garbage collection mechanism. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Jun 04, 2021 pm 07:25 PM

php 面试题垃圾回收机制

What are the new features in Redis6.0? Let's take a look!

This article will let you know about the new features in Redis 6.0. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

May 21, 2021 am 10:47 AM

redis6.0

What are the new tags in html5

html5标签：bdi、mark、meter、progress、rp、rt、ruby、time、wbr、datalist、keygen、output、canvas、audio、video、source、header、footer、nav等。

May 11, 2021 pm 04:06 PM

html5新增标签

The difference between nodejs and javascript

The difference between nodejs and javascript is: 1. Native js running files depend on the browser; 2. When nodejs runs files, the service is the terminal; 3. Native js has compatibility issues, but nodejs does not have compatibility issues; 4. nodejs can Perform local reading and writing, which native js cannot do.

May 10, 2021 pm 02:49 PM

javascript nodejs

8 Node.js Frameworks Worth Knowing in 2021

This article will introduce to you the Node.js framework that is most worth knowing and using in 2021. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Apr 28, 2021 am 11:46 AM

Node.js 框架

Some learning and understanding of composer

Below, the composer tutorial column will introduce you to some learning and understanding of composer. I hope it will be helpful to friends in need!

Apr 23, 2021 pm 04:06 PM

php composer laravel

Let's take a look at PHP integration php7 features

PHP7 has been out for a year, and PHP7.1 is about to meet everyone. There are so many good features and good methods, why not use them, and I hope that PHP will get better and better. Let’s take a look together.

Apr 16, 2021 am 11:30 AM

PHP php7特性

Learn more about transactions in Redis

This article will give you a detailed understanding of transactions in Redis. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Apr 13, 2021 am 10:57 AM

Redis 事务

What are the tags of html

The tags of html are: 1. "" tag is used to define comments; 2. "<!DOCTYPE>" tag is used to define document type; 3. "<a>" tag is used to Define anchors; 4. "<abbr>" tag is used to define abbreviations; 5. "<acronym>" tag is used to define abbreviations that only take the first letter, etc.

Apr 09, 2021 am 10:36 AM

html

40 Redis interview questions you can't miss (including answers and mind maps)

This article shares 40 Redis interview questions with you, including answer analysis and mind maps of Redis knowledge points. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Apr 02, 2021 am 10:34 AM

redis面试题