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Course Introduction：We can utilize various functions or a combination of them to extract specific strings in Excel. Here are some key substring functions available in Excel:LEFTRIGHTMIDLENFINDTRIMTEXTBEFORETEXTAFTERLet's explore each of these functions in detail. You ca

2025-05-28 comment 0  841

Course Introduction：This Excel INDIRECT tutorial explains the function's syntax, basic uses and provides a number of formula examples that demonstrate how to use INDIRECT in Excel. A great lot of functions exist in Microsoft Excel, some being easy-to-underst

2025-05-11 comment 0  605

Course Introduction：The core functions of JavaScript are constantly being improved, and many new classes and functions have been added to assist programmers' work. However, some basic practical functions are still missing and need to be implemented with libraries such as jQuery, Prototype, and MooTools. While these tools are great, in some cases, using them seems a bit cumbersome. This article will introduce five practical functions that I think JavaScript should be built in. Key points: JavaScript lacks some basic practical functions that usually need to be implemented with libraries such as jQuery, Prototype, and MooTools. However, for some requirements, using these libraries appears

2025-02-25 comment 0  824

Course Introduction：Here are some code snippets that use jQuery to randomly sort items. Sort code snippets The following functions use object literal format: shuffleAds: function(arr) { for (var j, x, i = arr.length; i; j = parseInt(Math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x); return arr; } View the demo Another function that implements the same function: function randsort(c) {

2025-03-01 comment 0  629

Course Introduction：PHP techniques for adding text and image watermarks when uploading images. PHP implements techniques for adding text and image watermarks when uploading images. The functions implemented in this article are particularly suitable for some shopping malls and image sites. It shares the method of adding text and image watermarks when uploading images.

2016-07-06 comment 0  1085

Course Elementary  13744

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82260

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13130

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24578

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27436

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.