Vue construction project - preliminary construction

1. Prepare the environment If you have an older version Vue cli, uninstall it    1 npm uninstall vue-cli -g //Or yarn global remove Vue cli Install new version cnpm install -g @vue/cli //yarn global add @vue/cli vue -V 2. Create project Create a project and write the project name vue create <Project Name>//Humps (including u ...

Posted by Theramore on Mon, 20 Sep 2021 04:09:58 -0700

javascript advanced programming collection type reference

#javascript advanced programming (VI) collection type reference 1, Object How to explicitly create an object instance (1) new + constructor let person = new People(); person.name = "abc"; person.age = 27; (2) Object literal let person = { name: 'abc', age: 28 } tips: a. Numeric property names are automatically converted to strings b. Wh ...

Posted by jamkelvl on Sun, 19 Sep 2021 20:56:14 -0700

Implementation principle of call and apply in JS

         There are two functions call and apply on the prototype chain of the Object object in JS. Their main function is to point this of the called function to the target Object, i.e     Object.call(target_ele);          In another article, I also elaborated on ...

Posted by Geteburg on Sun, 19 Sep 2021 18:16:44 -0700

Reference type of JavaScript

Common collection reference types include Object, Array, Map, Set, etc Object Most reference values are of the Object type used. // Literal definition let obj = { // Store values of any type. val: 10, obj: {}, func() { } }; // Value console.log(obj.val); console.log(obj["val"]); Array Arrays in JavaScript are dynamic an ...

Posted by azwebdiva on Sun, 19 Sep 2021 13:52:32 -0700

(javascript learning) Review Record 1

1. Basic Use 1.1 Use 1. Internal Label 2. External labels <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <!-- script Write code--> <script> //<!--Pop-up window--> alert("hello world"); </script> <!--External introduction--&g ...

Posted by wsh on Sun, 19 Sep 2021 12:42:08 -0700

Built in object of JS

Packaging Number(), String(), and Boolean() are respectively "wrapper classes" for numeric, string, and Boolean values.Many programming languages have the design of "wrapper classes". The purpose of wrapper classes is to enable the basic type values to obtain methods from the prototype of their constructor. Summary of ...

Posted by Irap on Sun, 19 Sep 2021 12:09:24 -0700

vue component vue pdf encountered the problem that the content replaced by gnawing and loading pdf is not displayed

Recently done mobile terminal project, packaging PDF Preview component, colleagues started using vue-pdf To preview and step on the pit again and again, we basically encounter three problems: 1,PDF Chinese not displayed 2,PDF If the signature is not displayed, the console prompts: Warning: Unimplemented widget field type "Sig", falling back to ...

Posted by julian1 on Sun, 19 Sep 2021 11:42:45 -0700

02-Vue Base-Template Syntax

Preface This article is from the Vue3 + Ts course of coderwhy Attached link:https://ke.qq.com/course/3453141 Who can reject a teacher who adds 100% positive comments? Catalog Preface vs-code snippet Template syntax Use of mustache Common Instructions v-once directive v-text v-html v-pre v-cloak v-bind v-on conditional rendering ...

Posted by unidox on Sun, 19 Sep 2021 05:54:39 -0700

The experience summary of exporting pdf in the foreground (html2canvas.js and the browser's own printing function - print.js) and some methods of exporting pdf in the background

Two ways to export pdf from the foreground html2canvas.js & pdf.js brief introduction We can directly use html2canvas on the browser side to 'screenshot' the whole or part of the page. However, this is not a real screenshot, but by traversing the page DOM structure, collecting all element information ...

Posted by kurdishvoice on Sun, 19 Sep 2021 02:50:44 -0700

Vue series: core concepts and features of Vue

Hello, I'm front-end Fengfen, a program of second-line city. The second half of the year is a special month for us. At the end of July, Zhengzhou experienced many years of unexpected floods, unable to travel, resting at home, an epidemic occurred in August, working at home for a month, the epidemic in September passed, and finally came to work ...

Posted by fullyscintilla on Sun, 19 Sep 2021 01:02:01 -0700