Course26454

Course Introduction：Regular expressions, also known as regular expressions. (English: Regular Expression, often abbreviated as regex, regexp or RE in code), a concept in computer science. Regular tables are usually used to retrieve and replace text that matches a certain pattern (rule).

Course35113

Course Introduction：Regular expressions are used in almost all programming languages. It is an art of query. It uses short syntax to achieve powerful search functions. The content of this course is a quick introduction to PHP regular expressions.

Course4547

Course Introduction：In any programming language, regular expressions are an important piece of knowledge. They provide an efficient string matching and capturing mechanism, which can greatly simplify program design.

Course13040

Course Introduction：By using regular expressions to represent text search parameters, some dynamically changing string matches, such as changing time, can be cleverly completed. Therefore, we have collected the "Boolean Education Regular Expression Video Tutorial", hoping to help everyone better understand regular expressions.

Course8374

Course Introduction："JS Development Verification Form Tutorial" will introduce the front-end div+css layout in detail and achieve the effect of verification form through native js code.

Course Introduction：JavaScript expressions include: 1. Arithmetic expression; 2. String expression; 3. Main expression; 4. Array and object initializer expression; 5. Logical expression; 6. Left-hand expression Formula; 7. Property access expression; 8. Object creation expression; 9. Function definition expression; 10. Call expression, etc.

2022-01-19 comment 03551

Course Introduction：Lambda expression is a concise representation of an anonymous function. It can be used where a function is required as a parameter, and provides a simpler and more flexible coding method. Its syntax is "lambda parameter list: expression", The parameter list is the parameter of the function and can contain one or more parameters, separated by commas. The expression is the execution body of the function and is used to define the specific operation of the function.

2023-09-15 comment 0962

Course Introduction：Difference: 1. PHP regular expression supports "(?

2022-03-02 comment 02112

Course Introduction：Lambda expression is a commonly used expression form in functional programming, which provides a concise and flexible programming method. In Java8 and later versions, Lambda expressions have become an important programming tool and are widely used in the implementation of functional interfaces. The basic format of a Lambda expression is as follows: (parameter)->expression where parameter represents the parameter list of the Lambda expression, which can contain one or more

2024-02-19 comment 0634

Course Introduction：The css expression is to use expression() after the css attribute to connect a JavaScript expression. The value of the css attribute is the result of the JavaScript expression; the syntax format is "css attribute: expression (JavaScript expression);".

2021-07-06 comment 02953