How to use an interface to define a class with a constructor

problem description

I have a requirement now

interface IGun {
    (putBullet: number):void;
    shot():void;
}
class Gun implements IGun {
    bulletCount: number = 0;
    construtor(putBullet: number) {
        this.bulletCount = putBullet;
    }
    shot() {
        // shotting bullet in boundary of bulletCount;
    }
}

the environmental background of the problems and what methods you have tried

interface IGun {
    constructor(putBullet: number):void;
    shot():void;
}

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

both definitions of interface are wrong. I want to know how to define them correctly.
I need help! Please!

Typescript

Dec.24,2021


class Gun implements IGun {
    bulletCount: number = 0;
    "construtor"(putBullet: number) {
        this.bulletCount = putBullet;
    }
    shot() {
        // shotting bullet in boundary of bulletCount;
    }
}

take a look at link description

Previous: Does react server rendering have to use redux to manage data? Can I write it directly in the component?

Next: ES6 forEach an array, why did you report this error?

How to test ts files with jest
see the instructions on jest s official website to download ts-jest, but I don t know how to use it, and no clear tutorials have been found. Please help me ...

Jest typescript

Feb.28,2021
Typescript circular reference problem
there are two classes as follows Parent.ts import {Sub} from ". Sub"; export class Parent { public getSub() { return new Sub(); } } Sub.ts import {Parent} from ". Parent"; export class Sub extends Parent {} r...

Typescript javascript

Feb.28,2021
Jsonp cross-domain request, if the website where the resource is located is limited, how to deal with the data that cannot be requested?
data cannot be returned when using a jsonp request. Because the site has made restrictions, you can only request under this domain name to get the data. could you tell me how to solve this problem? or there are other cross-domain methods that can solve...

React.js less typescript html5 javascript

Feb.28,2021
How is Baidu News added to the website?
when our website is opened on the computer side, Baidu news often appears at the bottom of the page. I don t know what this is caused by, is it the code? Did we drive it on our own initiative? Or are there some problems with the settings of the operato...

Typescript html5 node.js php javascript

Feb.28,2021
How nestjs validates some parameters.
according to nest.js official documents, request parameter verification is implemented using class-validator and pipe , but can only be fully verified according to the rules defined when the entity is defined, that is, the verification rules in th...

Node.js typescript

Feb.28,2021
Why the vue-shims.d.ts file can be used in typeScipt and how ts recognizes it.
in addition, why the following code can declare a .vue file. src vue-shims.d.ts declare module "*.vue" { import Vue from "vue"; export default Vue; } ...

Vue.js typescript javascript

Mar.01,2021
How the tinyMCE Rich text Editor sets the default picture width
guys, I want to set a default width for the image in the editor after the user uploads the picture. Where should I set it? here are my current tinyMCE initialization settings tinymce.init({ selector: -sharp + this.elementId, ...

Angular4 typescript php javascript html

Mar.01,2021
Vue uses $router to jump to the page and pass the parameter question.
I want to use $router.push () to jump to the page to transfer parameters, how should I write. (ps: my project is all imported into Vue files directly with script tags) I execute the function Path. I want to transfer the data to the sort-add.html page....

Node.js javascript typescript

Mar.01,2021
@ ngrx/core @ ngrx/store-- save reports errors in both angular2 and angular4
npm install @ ngrx core @ ngrx store-- save reports errors in both angular2 and angular4 ...

Angular4 angular2 typescript javascript

Mar.01,2021
How does typescript beautifully define and reference types?
first of all, let s talk about my problem. I m currently building a project using webpack + typescript to define a class: NetData. requirements are as follows: there is a frequently used function: (netdata: NetData) = > void . I wrote an alias u...

Function class typescript

Mar.02,2021
Vue + typeScript eslint error report?
Code first http: eslint.org docs rules Parsing error: Unexpected token 10 | @Component 11 | export default class HelloWorld extends Vue { > 12 | private msg: string = Welcome to Your Vue.js App | ^ 13 | ...

Javascript eslint typescript vue.js

Mar.02,2021
Rules of TypeScript Code formatting Scheme
recently, I have seen the official coding specification used by TypeScript to constrain contributors. There are several doubts as follows: Private property names do not use the _ prefix: why not the _ prefix? Don t add I in front of the interface ...

Code-specification typescript

Mar.02,2021
The problem of merging javascript objects
in the following objects: var prd = { "id": 1, "department_id": 42, "products": [{ "id": 12, "name": "49da", "grouped_addons": [{ ...

Typescript javascript

Mar.02,2021
It is not perfect to use typescript code to prompt an exception in a .vue file.
the test2 attribute is explicitly declared in my custom class, but when I instantiate the class in the .vue file, the code prompt does not have the attribute test2 (although it will not report an error), but the code prompt is normal after I reload...

Typescript vue.js

Mar.02,2021
How to solve the problem that changing the face value of the picture causes the upload button of ng2-file-upload to be invalid?
<select class="input-group-sm form-control"> <option>{{xx}}< option> < select> <input -sharpfileSelect type="file" ng2FileSelect [uploader]="uploader" (change)="bb($event)" > &l...

Typescript angular2

Mar.02,2021
How to customize alert, confirm and other pop-up boxes in ionic3 + angular5 + typescript project
ionic3angular5ionic3alertControllerionic3es6alertconfirm ionic1+angularjs1+JavaScriptalertconfirmfunctionoptionionic1$popupoptions ...

Ionic typescript angular5

Mar.03,2021
The problem with vue typescript
I would like to ask whether vue2.5 will not need this code in the future declare module *.vue { import Vue from vue ; export default Vue; } I ve seen many configuration tutorials require this, but official documents say in Vue 2.5.0 ...

Typescript vue.js

Mar.03,2021
I would like to ask ts how to write d.ts when importing the js file of a single function.
the md5 library is needed in the project, and the front end is not Node,. Because of the project, you can t use npm and then webpack transfer. The md5 library used by is this https: github.com blueimp Ja.. used in ts class Md5 { md5(data:str...

Typescript md5

Mar.03,2021
Property 'find' does not exist on type' Product []?
import * as express from express import {Server} from ws const app = express() export class Product { constructor( public id: number, public title: string, public price: number, public rating: number, ...

Typescript angular4

Mar.03,2021
Whether typescript, is used in the react project also needs to use prop-types for format verification.
for example: whether typescript, is used in the react project also needs to use prop-types for format verification. ...

Typescript javascript

Mar.04,2021

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eaa3cd-1fc2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eaa3cd-1fc2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?