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This article mainly introduces "js how to customize the constructor to create objects". In the daily operation, I believe many people have doubts about how to customize the constructor to create objects in js. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "how to customize constructors to create objects in js". Next, please follow the editor to study!

1. The process of building a function by new is not needed inside the function. Instead of writing properties and methods to objects, this is directly used, and return is not required to return values. More convenient than the factory method.

2. When in use, call the custom constructor using the new keyword.

Note: the first letter of the constructor's function name needs to be capitalized, which is different from other ordinary functions.

Example

Function Person (name, age, sex) {/ / do not need to use new for a new object, but directly replace the future created new object this.name = name; this.age = age; this.sex = sex; this.sayHi = function () {console.log ("hi");}; / / do not need return} var p1 = new Person ("zs", 18, true); console.log (p1) At this point, the study on "how to customize the constructor to create objects in js" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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