Programmer Think

This in js is an old topic. This article is probably the most comprehensive interpretation of this. Take a closer look. 1. First of all, we should understand the concept of objects in js. We say that js objects are roughly divided into dom objects and bom objects, that is, html pages are called objects, browsers are called objects, and the obj ...

Addition assignment (+ =) The addition assignment operator (+ =) adds the value of the right operand to the variable and assigns the result to the variable. The type of the two operands determines the behavior of the addition assignment operator. Addition or concatenation is possible. let a = 2; let b = 'hello'; console.log(a += 3); // addit ...

brief introductionFrom implementing the basic architecture of the project - > supporting multi specification packaging - > implementing on-demand loading - > publishing npm packages, take you to build component libraries from 0 to 1.Construction projectInitialize project directorymkdir lyn-comp-lib && cd lyn-comp-lib && ...

preface This article introduces you to what Ajax is The following is the main content of this article. The following cases can be used for reference 1, What is Ajax? Ajax itself is not a technology. Ajax is a way to change the data interaction between web application and server by using JavaScript script (asynchronous loading of pa ...

**1. Tool introduction ** Tools required for this case (including but not limited to): vscode (code editor), node JS (various plug-in download tools), China js,echarts. min.js,juquery. Min.js, etc. (official. JS plug-ins related to JavaScript), IDEA (all code can be written here) Languages and other technologies involved: html5+css+JavaScript ...

① First knowledge theory Frame: the time slice is small enough = "is the animation, 1 second 30 frames. Connect is animation, open is static picture! Keyboard monitor Timer timer ② Game development ideas (define data, draw a panel, and listen for events (keyboard / event)) 1. First of all, a game main startup class, StartGame class, in ...

Common concepts Composition of JavaScript JavaScript foundation is divided into three parts: ECMAScript: Syntax Standard for JavaScript. Including variables, expressions, operators, functions, if statements, for statements, etc. DOM: Document object Model, an API for manipulating elements on Web pages. For example, let the box move, change ...

1. First, use steps of components: Using nano id s to generate unique IDs is lighter than UUIDs 1. Create components vue file, component name name (initial capital) 2. import Student from "./components/Student.vue" (under the script tab) 3. Register component: the name attribute of the current component is equal to the date attrib ...

introduction Recently, I am learning the data structure of javaScript. Linked list and array in javaScript can play a complementary relationship. Some complex data structures are suitable for array implementation (such as stack), while others are more suitable for linked list implementation (such as queue). Today, I will study the implemen ...

There are four ways to detect data types typeof,instanceof,constructor,Object.prototype.toString.call(),jquery.type() typeof console.log( typeof 100, //"number" typeof 'abc', //"string" typeof false, //"boolean" typeof undefined, //"undefined" typeof null, //"object" typeof [1,2,3], //"object" typeof {a:1,b:2,c:3} ...