Course19220

Course Introduction：PHP array functions allow you to access and manipulate arrays, supporting single-dimensional and multi-dimensional arrays. Array functions are a core part of PHP. No installation is required to use these functions. "PHP Function: Array Array Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP array functions, and provides examples of functions through the PHP editor to help PHP learners better understand and use array functions.

Course13195

Course Introduction：PHP string functions belong to the core part of PHP. No installation is required to use these functions. "PHP Function String String Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP string functions, and runs examples of various string functions in the browser through the PHP editor to help PHP learners learn more Good to learn and use string functions.

Course1710

Course Introduction：Delphi6 function encyclopedia

Course4945

Course Introduction：The three most important core technologies in JavaScript are: functions, objects and closures. It can be seen that functions always occupy the core position and are first-class citizens in JavaScript. It can be said that everything in JavaScript comes from functions. .

Course22957

Course Introduction：Functions of smarty template engine

Course Introduction：The main differences between arrow functions and ordinary functions are syntax simplicity, different this points, not applicable to constructors, no arguments objects, etc. Detailed introduction: 1. Syntax simplicity. The syntax of arrow functions is more concise than that of ordinary functions. Arrow functions can be defined using arrows. The function keyword and curly braces are omitted, and the parameters and return values of the function can be directly defined. The arrow function is When there is only one parameter, the parentheses can also be omitted; 2. This points to different points, etc.

2023-09-13 comment 0880

Course Introduction：yes. The arrow function is a manifestation of functional programming. Functional programming focuses more on the relationship between input and output, omitting some factors in the process. Therefore, the arrow function does not have its own this, arguments, and new target ( ES6) and super (ES6); arrow functions are equivalent to anonymous functions, so new cannot be used as a constructor.

2023-01-11 comment 01028

Course Introduction：The difference between arrow functions and ordinary functions

2020-06-12 comment 03262

Course Introduction：The characteristics of the es6 arrow function are: 1. The arrow function does not have an arguments object; 2. The this value of the arrow function depends on the this value of the non-arrow function outside the function, and the arrow function cannot change the direction of this; 3. The new keyword cannot be used in the arrow function Statement; 4. Arrow functions have no prototype attribute.

2022-04-11 comment 02797

Course Introduction：Differences: 1. The definition of the arrow function is much simpler, clearer and faster than the definition of the ordinary function; 2. The arrow function does not create its own this, but the ordinary function does; 3. The arrow function cannot be used as a constructor, while the arrow function cannot be used as a constructor. Functions can be used as constructors; 4. Arrow functions do not have their own arguments, but arrow functions do.

2022-03-08 comment 03264