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Recently, I want to develop a wechat applet, and then I see that tabbar of other applets looks like this 👇 Then I also want to do such a depressed tabbar (actually called by the leader). How does he realize the effect of this depression? I searched a lot on the Internet and didn't find the idea of realization. Later, I realized it after my ...

Author: shade Translator: front end Xiaozhi Source: learnvue There are dreams and dry goods. Wechat search [Daqian world] pays attention to this bowl washing wisdom who is still washing dishes in the early morning. This article GitHub https://github.com/qq449245884/xiaozhi It has been included. There are complete test sites, materials a ...

A function is composed of a series of subroutines (a collection of statements), which can be called by external programs. After passing parameters to the function, the function can return a certain value. Note that the function in JavaScript is also an object. When you use typeof to check a function object, function will be returned. 4.1 d ...

1. Review of knowledge points Parent element: parent node Get style # getComputedStyle # ele Currentstyle (IE compatible) The difference between className # and classList className is a string and classList is an array className: sets or returns the class attribute of an element. It returns a string. If I want to delete or add and r ...

1. Entry function Portal on official website: https://jquery.com/jQuery file download: https://code.jquery.com/jquery-1.12.4.min.jsOfficial document portal: http://jquery.cuishifeng.cn/index.html Js native entry function: window.onload = function(){ }​Jq entry function: Abbreviation: $(function() {}) Standard: $(document) ready(function () ...

forEachno return valuevar a = [1,2,3,4,5] var b = a.forEach((item) => { item = item * 2 }) console.log(b) // undefinedCannot interrupt executionThe execution cannot be interrupted during forEach traversal. If you want to meet certain conditions, the traversal will be interrupted. Use the for loop.var arr = [1, 2, 3]; for (var i = 0; i & ...

Recently, the project encountered a small requirement that the file name is provided by the back end when the front end downloads a file (it turned out that the front end writes the file name dead). Our project architecture is SpringBoot+React (TypeScript). I looked at the back-end code and inserted the file name into the header of the response ...

Condition test The following programming paradigms can be clearly expressed: If X, then Y, else Z Today, modern JavaScript applications are highly dynamic and variable. Their state and DOM change over time. The problem with conditional testing is that it can only be used when the state is stable. In modern applications, it is often impo ...

prefaceHello, I'm Lin Sanxin. As we all know, modifiers are also one of the important components of Vue. Making good use of modifiers can greatly improve the efficiency of development. Next, let's introduce the 13 Vue modifiers that interviewers like to ask1.lazyThe lazy modifier is used to change the value of the input box without changing the ...

What is the fault effect? Its original meaning is "temporary interference", which is often used to refer to "image interference" in visual art. This is one of the most common effects in horror films and online films. What is RGB displacement? Color difference, RGB offset, RGB split, etc. there are various methods to des ...