Programmer Group

1. Introduction to JavaScript JavaScript is an interpretive programming language for HTML and web. It is also a weak type lightweight script language with function priority. It can interact with HTML front-end pages without precompiling. It supports cross platform operation and can be used in multiple platforms (such as Windows, Linux, Mac, And ...

Wechat developed by the company Small program , pm wants to achieve the following requirements: Zoom the picture with your fingers. In fact, before realizing this demand, we didn't know that WeChat official account and WeChat api had a native special effect on it, and WeChat's friend circle also used this api. wx.previe ...

The novel coronavirus pneumonia was issued today in April 4, 2020 to express the deep condolences of the people of all ethnic groups to the martyrs and their dead compatriots. When using control templates, you need to decide how to share them more widely and whether you want to use them automatically or explicitly. The first is about where yo ...

JavaScript style operations include controlling the inline style of an element through the style attribute, getting the effective style of an element through the getComputedStyle method, changing the pseudo element style by changing the element class name, and animating the style through a timer style attribute DOM cannot manipulate CSS fil ...

Recently, I have been using bootstrap to write a few blogs.... bootstrap selectpicker is a relatively simple component of a drop-down box in bootstrap. The effect is as follows: Attach the api link on the official website, http://silviomoreto.github.io/bootstrap-select/ (there seems to be something wrong with the offic ...

I often use SQL in my work, which has annoying subtle differences and limitations, but after all, it is the cornerstone of the data industry.Therefore, SQL is indispensable to every data worker.Being proficient in SQL means a lot. SQL is good, but how can you just be satisfied with "good"?Why not proceed further with SQL? Statements c ...

ConcurrentHashMap(JDK1.8) Learning Records Read the ConcurrentHashMap series that you forgot to read, this article mainly records what you learned by looking at the ConcurrentHashMap source code.There are several main points.The article is a bit long and requires patience. ConcurrentHashMap constructor and related properties 2. ConcurrentHashMa ...

Sketch Learning the second section of vue, because version 2.0 is not downward compatible, many of the video can not be implemented. Here are some main knowledge points //v-on can be abbreviated as@ //Event bubbling means that when you click the button inside the div to trigger show1(), it will inevitably bubble to ...

iOS reflection mechanism: the use of objc property Objc ﹣ property ﹣ t is often used in actual development, for example, it is necessary to obtain the property of a registered class, or judge the type of property, or automatically assign a value to the property after obtaining the property, etc Here is an example of ...

Step 1: write out the HTML structure First write a static effect you need to show, and then change it to VUE dynamic generation. The code is as follows: <div id="app1" class="wrap"> <ul class="tabs"> <li class="active"><a href="javascript:">Label 1</a></li> <li>&lt ...