Commonly used utils.js will be improved later
Common tool classes, which are being added later......
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Tag: javascript
How do I use NodeJS to automatically send mail?
December 6, 2023
by Christine Hughes
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I've been working on a lot of server modules with Nodejs, so I'm going to show you how to use Nodejs to send emails to...
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Cross-platform Js Bridge rookie -DSBridge Android
December 6, 2023
by 黃婷婷
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Cross-platform; Supports both ios and Android. Suppose Native implements two apis: testSyn and testAsyn. Parameters are passed in JSON. TestSyn is a synchronous API that...
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Make sure you know the core operation principle of data types, stack memory
December 6, 2023
by Madison Johnson
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Js data type Basic data type (value type) Number String Boolean NULL undefined symbol Reference data type object {} common object (JSON) [] array /^$/...
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Summary of JavaScript array methods
December 6, 2023
by Tracy Cooper
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arr.unshift(... Items) -- adds elements from the front end. The element is deleted, but the array still has three elements, because delete obj.key removes the...
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Functional programming — Haskell Brooks Curry
December 6, 2023
by Christopher Foster
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What is Cremation? When a function has multiple arguments, you call it by passing some of the arguments (those arguments never change) and then return...
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02. Execution Context and stack in JS
December 6, 2023
by Billy Wright-Brown
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** * == undefined* 1.2 = undefined* 1.2 = undefined* 1.2 = undefined* 1.2 Function declarations are promoted ** == by fun
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I finally understand closures
December 6, 2023
by Mrs. Marie Gardner
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The word closure sounds so advanced and scary. But closures are actually very powerful, and one of the essence of JS is closures. We use...
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This time, thoroughly understand the JavaScript function execution mechanism
December 6, 2023
by Sumer Goyal
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Scope scope is the accessible scope of JS functions and variables, divided into global scope, local scope and block level scope. The global scope is...
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Introduction to copy
December 6, 2023
by 楊冠霖
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Data storage Data is divided into basic data types (String, Number, Boolean, Null, Undefined, Symbol) and Object data types (Object, Function)
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Vue-cli package optimization
December 6, 2023
by Seher Andra
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Add the favicon.ico file to the project root directory (index.html sibling). 3. Configure the WebPack configuration file (under the Build folder)
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OpenLayers introduction (2)
December 6, 2023
by Nathan Francis
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Let's start by sharing a tutorial I stumbled across at http://linwei.xyz/ol3-primer/index.html. Although the introduction is based on v3 version, many of the APIS may have...
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Javascript Array object review
December 6, 2023
by Julia Stephenson
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Recently, in reviewing the knowledge points of javascript, I spent a few days of spare time to re-learn Array objects in MDN, and gained a...
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Chapter 4 JS—- The Road from Beginner to Proficient (continuously updated….)
December 6, 2023
by Angela McKay
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Return value (UN) {return value (UN) {return value (UN) {return value (UN) {return value (UN) {return value (UN)
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Vue 2.x source code Reading Record (4) : Component updates and Props
December 6, 2023
by Tiffany Anderson
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The different logic of new and old nodes is similar to the initial patch # APP process, which is divided into three processes: creating new...
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JavaScript variable ascend | scope | | execution context variables
December 6, 2023
by Anay Manda
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@[TOC] Variable promotion In JavaScript, functions and variable declarations are promoted to the top of the function. That is, variables can be used before they...
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Js this refers to the problem
December 6, 2023
by 龍美玲
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This is the 18th day of my participation in the text challenge.js special object: first let's look at the following special objects in JS: 1.this...
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Various traversal methods for arrays 1-3
December 6, 2023
by John Wright
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ForEach (forEach, forEach, forEach, forEach, forEach, forEach, forEach, forEach, forEach, forEach) The distinction between and for loops does not support BraEK
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Select a multiple Bootstrap Selectpicker style that cannot be modified
December 6, 2023
by Kaitlin Gutierrez
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1. JQuery finds that you can select a single control, but the checked control is still in the state of multi-select. You do not need...
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JavaScript Review (8)
December 6, 2023
by Renee Shannon
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This is my 31st day in the querySel challenge, which is a DOM query (1) to get the body tag (2) to query a list...
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The front end of the interview | array flattening to reorder
December 6, 2023
by Stuart Cresswell
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Given the following array, write a program to flatten the array to remove the duplicate part of the data, and finally get an ascending and...
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React-router-dom react-router-dom
December 6, 2023
by Logan Thompson
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import './index.import App from '.import * as serviceWorker from '.ReactDOM., document.// unregister() to register() below. Note this comes ...
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Implement redux and React-redux from zero
December 6, 2023
by 李雅玲
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There's a saying in the front-end community that Vue is easiest to get started with, React has a steep learning curve, Angular... I'll stick with...
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This in the arrow function
December 6, 2023
by Brett Johnson
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The arrow function is of the form () => XXX. It is written as a single line, leaving out the parentheses, return and semicolon after...
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Today we will cover several modular specifications CMJ, AMD, CMD, ESM, as well as simple implementations AMD, CMD
December 6, 2023
by Eva Barr
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When it comes to CMJ, we can easily think of Node.js because the modular specification used by Node is CMJ, which indicates that CMJ is...
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Android custom View details
December 6, 2023
by Dr. Angela Moran
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Android View DecorView is a DecorView process that can be used to create a View
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Programming problem series :(8) time formatting output
December 6, 2023
by 鄧宗翰
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This question comes from niuke.com and has been successfully tested. The author just started to learn front-end, ready to record their own learning process in...
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Website reconstruction – background services
December 6, 2023
by Badal Das
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At home code, fortunately, the completion of the current degree or to reach my expectations, although not much higher, but at least the project than...
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Build the Web test environment using Karma + Jasmine
December 6, 2023
by Miss Kathleen Wilson
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Now, a dizzying number of Web frameworks are popping up. As browsers evolve, some front-end frameworks try to implement server-side functions and technologies on the...
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