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Course Introduction：PHP's trim() function can be used to remove whitespace characters or other specified characters at the beginning and end of a string. 1. By default, trim() removes spaces, tab characters (\t), line breaks (\n), carriage return characters (\r), empty bytes (\0), and vertical tab characters (\x0B); for example, trim("\n\tHelloWorld!\r\n") outputs HelloWorld! 2. The characters to be removed can be specified through the second parameter, such as trim("---HelloWorld!---","-") returns HelloWorld!, and supports multiple characters, such as trim(&

2025-07-09 comment 0  278

Course Introduction：Troubleshooting ".trim() Not Working in IE"The .trim() method is a commonly used string function in JavaScript, but users may encounter issues...

2024-11-16 comment 0  1049

Course Introduction：.trim() Not Supported in IEIn JavaScript, the .trim() method is commonly used to remove leading and trailing white space...

2024-11-24 comment 0  1094

Course Introduction：.trim() Method Not Functioning in Internet ExplorerWhen attempting to utilize the .trim() method on a string in JavaScript, users may encounter an...

2024-12-04 comment 0  440

Course Introduction：Use the trim() method to remove whitespace characters at the beginning and end of a string. 1. Use trim() to remove the blanks at the beginning and end of the string at the same time; 2. Use trimStart() to remove only the blanks at the beginning; 3. Use trimEnd() to remove only the blanks at the end; 4. If you need to remove all the blanks inside the string, you can combine replacement(/\s /g,''); 5. If you need to normalize the internal spaces, you can use trim().replace(/\s /g,'') to replace multiple consecutive spaces with a single space. The whitespace in JavaScript includes spaces, tabs, line breaks, carriage return, page breaks and Unicode space characters. The trim() method can automatically handle it.

2025-08-06 comment 0  923

Course Elementary  13826

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  82370

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  13185

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  24635

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  27494

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.