CourseElementary54124
Course Introduction："HTML5 From Beginner to Mastery Tutorial" introduces in detail that HTML5 has added a lot of new content based on HTML, with more functions and more dazzling effects.
CourseElementary26926
Course Introduction："Javascript Basics Tutorial" will take you to quickly learn the basic knowledge of javascript and explain it through examples, so that you can better understand the javascript scripting language.
CourseElementary30790
Course Introduction：This tutorial will start from the basics and does not require you to have any programming knowledge. The "HTML Tutorial" contains our knowledge of HTML5, truly achieving a comprehensive learning of HTML.
CourseElementary24062
Course Introduction："HTML5 Quick Self-Study Tutorial" is suitable for zero-based entry learning of HTML5. HTML5 is the fifth version of HTML development. With the support of browser technology, it has also begun to be widely used. H5 will become the new standard for WEB development. This course will provide readers with Explain all the core features of HTML5.
CourseElementary90666
Course Introduction："JavaScript Elementary Tutorial" is an introductory course to JavaScript, designed to let everyone know and understand the common knowledge of JavaScript.
Database - Is there a function in mysql to check the data size??
2017-06-06 09:51:55 0 1 616
Course Introduction：Guide to PHP array length. Here we discuss the introduction, syntax, and working of array length in PHP along with different examples.
2024-08-29 comment 0150
Course Introduction：The difference between jquery size() and length: 1. length is an attribute, and you can only use length to calculate the character length; 2. [size()] is a method in jQuery that is used to get the number of elements and calculate the array length starting from 1.
2020-11-19 comment 02560
Course Introduction：The LENGTH()LENGTH(str) and OCTET_LENGTH(str) functions are used to return the byte length of a string, for example: SELECTLENGTH('MySQL String Function')ASlen1,OCTET_LENGTH('MySQL String Function')ASlen2;len1|len2 |----+----+20|20|In utf8mb4 encoding, one Chinese character occupies 3 bytes. In addition, the CHAR_LENGTH(str) and CHARACTER_LENGTH(str) functions are used to return
2023-05-26 comment 03487
Course Introduction：Differences: 1. size() is a function provided by jQuery, and length is an attribute. 2. Size() is a method for operating object instances. It is defined in jQuery and can only be used under jQuery; length is defined in dom and javascript and can be used without jQuery.
2020-11-13 comment 02541