ECharts mapping - (national epidemic simulation example)

National epidemic simulation example Before drawing, we need to know some basic components of Echarts: 1.geo geo is the geographic coordinate system component of the ECharts chart. The geographic coordinate system component in ECharts can be used for map drawing. It supports the drawing of scatter map ...

Posted on Fri, 21 Feb 2020 01:00:00 -0500 by Tonisius

[important notes on data analysis and mining 2]

Article directory Software to install - Anaconda Detailed installation steps and methods of Anaconda Anaconda quick download address Choose your version That's it Detailed installation steps of Anacon ...

Posted on Thu, 20 Feb 2020 05:33:04 -0500 by FireyIce01

jQuery-JQuery event registration - jQuery event object - copy object - Multi library Coexistence - plug-in - with practice cases - Recommended collection

jQuery Learning objectives: Be able to name four common registration events The advantages of being able to say on binding events Be able to say the advantages and ways of jQuery event delegation Be able to say binding events and unbinding events Be able to say the copy method of jQuery object Two way ...

Posted on Thu, 20 Feb 2020 04:16:17 -0500 by scnjl

Implementation principle and rewriting of new in JS

When it comes to new, it is bound to be associated with classes and instances, such as: function Func() { let x = 100; this.num = x + } let f = new Func();   In the above code, we first create a Function. In the object-oriented way, we create an instance of a Function class. If we execute this Function directly, it is a common Functio ...

Posted on Wed, 19 Feb 2020 10:06:43 -0500 by Isoss

Use of $Bus in Vue

Separate the Bus into one file Bus.js import Vue from 'vue'; let Bus = new Vue(); export default Bus; Create two brothers C2.vue <template> <view> <h1>c2</h1> </view> </template> <script> // Introducing Bus import Bus from '@/util/Bus'; export default { // In the life cycle after loadi ...

Posted on Wed, 19 Feb 2020 09:40:49 -0500 by yasir_memon

Use of v-bind instruction

1, v-bind instruction 1. usage Dynamically bind one or more properties or a component prop to an expression Other types of values, such as arrays or objects, are supported when Binding class or style attributes When binding a prop, the prop must be declared in the subcomponent. You can use modifier ...

Posted on Wed, 19 Feb 2020 05:44:26 -0500 by Merdok

JavaScript advanced programming 5. Reference type (basic packaging type)

JavaScript advanced programming 5. Reference type (basic packaging type) Catalog: Boolean type Number type String type Character method Character position method Character operation method Character size conversion method Pattern matching method of string Summarize XMind diagram For more a ...

Posted on Wed, 19 Feb 2020 03:46:31 -0500 by Fizzgig

Design patterns in JavaScript (summary)

Please leave a note before reprinting this original article concept Design pattern is a set of re used, most people know, classified, code design experience summary. There are routines in everything. Design patterns are common routines in code writing. Some of them are used in our daily life. Let' ...

Posted on Mon, 17 Feb 2020 23:31:24 -0500 by vadercole

Learn python-day02-24--From Python Distributed Crawler Creating Search Engine Scrapy

Section 368, Python Distributed Crawler Build Search Engine Scrapy Speech - Auto-Complete Search with Django Elasticsearch provides an auto-completion interface Official note: https://www.elastic.co/guide/en/elastic search/reference/current/search-suggesters-completion.html 1. Create search auto-comple ...

Posted on Mon, 17 Feb 2020 22:26:34 -0500 by phpQuestioner_v5.0

React Tutorial: Lifecycle of Components

1. Concepts of life cycle 1.1. Concepts In the process of component creation, component property update and component destruction, there are always a variety of functions that are executed. These functions triggered to execute at a specific time of a component are collectively referred to as component life cycle functions. 1.2, Component life ...

Posted on Mon, 17 Feb 2020 17:42:40 -0500 by plisken