vue js database

The first time I came into contact with the magic front-end framework vue. js? 1.1.23 Preface Start with vue. js, one of the hottest front-end frameworks in 2016. I found some information on the Internet and checked the vue. js.

The core of Vue. js is a response data binding system, which allows us to "bind" DOM to underlying data using special syntax in common HTML templates. The bound DOM will be synchronized with the data. The corresponding DOM view will be updated whenever the data is changed. Based on this feature, it is very easy to dynamically bind a class through vue.

This article first applies to Vue. in js, the differences between v-show and v-if are briefly introduced, and then Vue is introduced in detail through text. notes for using v-show and v-if in js. if you need them, you can refer to them for reference. Let's take a look at them. The official website says the difference b

Recently, the company decided to use Vue because of its new project. javaScript code is used, but an interesting thing is found in the Process of use, because the discovery involves some thoughts on getter and setter, for more information, see this article. For more information, see. Cause When I printed the attributes of the data object under the Vue instance, I found an interesting thing: Each of its at

Directly manipulate cookies in VueThe following 3 modes of operationSet: function (name, value, days) {varD =NewDate; D.settime (D.gettime ()+ -* -* -* +*Days ); Window.document.cookie= name +"="+ Value +";p ath=/;expires="+d.togmtstring ();},Get: function (name) {varv = window.document.cookie.match ('(^|;) ?'+ name +'=([^;] *)(;|$)'); returnV? v[2] :NULL;},delete:function (name) { This.Set(Name,"', -1);}Using the Js-cookie tool: (more convenient, rec

In the Vue. js tutorial, It is very convenient to calculate the inline expression of the attribute Vue. js, but it is most suitable for simple Boolean operations or String concatenation. If more complex logic is involved, you should use the computing attribute. The calculation attribute is used to declare that a value

1.VUE Front-end Simple introduction VUE JS is a concise two-way data binding framework, his performance is more than ANGULARJS, because the implementation of the mechanism and ANGULARJS, he added to the data at initialization get and set method, when the data set, the data properties to add monitoring, so that the data changes, Will trigger the watcher above him,

Before writing a demo There are some things to use D3 to achieve some effects but in many forums to find resources can not find the way to use the d3.js in Vue, npm above the D3 relatively speaking is very impersonal no say on webpack how to use D3.jsFinally, a long time to see a foreign big guy see his case successfully realized the use of D3 in Vue projectInsta

Install node JS to the simple process of running Vue1. Install node JS:http://nodejs.cn/download/2. Run node. js Command PromptAfter installation is complete (node-v View installed version)　　3, install NPM (since the current version of Nodejs has integrated NPM so there is no need to install, you can use npm-v to view the version)　　4, register CNPM to replace NPMUsing the command:npm install cnpm-g--regis

The project encountered the upload video function, need to have a preview and get the video length function, because before using upload (if necessary can refer to my previous article), here do not repeat, directly used to upload video, but before uploading and the successful upload after the hook, not get the length:No time how to do it, can only use the native JS to obtain:After the upload is successful, bind the successful path to videoUse

eliminates the process of program analysis, equivalent to the processed render function, and the Normal template or El is just a string, need to parse into an AST, and then convert the AST to the render function.Remember that either way, you have to get the render function.We use the process of the specific use of which method of invocation, according to the specific needs. If it is relatively simple logic, using template and El is better, because both of these are declarative renderin

Vue allows you to upload images to the database and display them on the page. This example describes how to upload images to a database and display them on a page. We will share this with you for your reference. The details are as follows: 1. Click Upload image. The select image option box is displayed. Page code: Because we need to set the upload image style, w

Communication between parent and child components is the transfer of private data, which is relatively easy to understand Implementation method The parent component passes the value to the child component Binding properties directly on a child component's label Subcomponents declare props to receive properties of parent component pass-through values Child components passing values to parent components Binding a method directly to a child compon

A hyperlink in a tag needs to add http://or the page cannot be found.An IFrame adds a tag, and the target property in the a tag controls the page that is about to be opened, which is displayed in that position._blank opens the linked document in a new window. _self Default. Open the linked document in the same frame. _parent Open the linked document in the parent frameset. _top Open the linked document throughout the window. FrameName opens the linked

What causes a syntax error in binding Vue. js to the HTMLclass array? How can this problem be solved? The following small series will share with you the Cause Analysis of Vue. js binding HTMLclass array syntax errors. If you are interested, let's take a look at the Vue.

handshake and wave process, A number of resources to download down, and multiple resources because all are sharing an HTTP request, so the head and other parts are also shared, equivalent to form a scale effect, so that the page display faster, user experience better. ）　　Vue-cli:vue.js's scaffolding tools. The plain is an automatic help you to build a good project directory, configuration of Webpack, as well as a variety of dependent package tools, t

far as cognitive levels are concerned, feel that these necessary DOM operations are still unavoidable. Other not much to say, look directly at the code ...In order to maintain the maintainability and legibility of the code, I put the template part separately in the Fuhao-components.js file, as follows:var texttpl= ' \‘;var textareatpl= ' \‘;var radiotpl= ' \‘;var checkboxtpl= ' \‘;var selecttpl= ' \‘;var phototpl= ' \\‘;var gpstpl= ' \Get location \‘;var defaulttpl= ' \‘;The final rendering eff

input that is the native DOM object, so we need to pass the event, but with a special variable $event.The second step of Vue initialization adds the methods property:methods:{Trigger when changing the value of inputChangenumber:function (event,x) {var obj=$ (Event.target);X.num = parseint (Obj.val ());},DeleteRemove:function (x) {if (Confirm ("Are you sure you want to delete it?") ")){Goods_list.splice (x, 1);}else{return false;}},This is the basic f

Not much to say, directly on the code AH ~Let's start with a structure diagram:The VUE-CLI wrote a JS file of his own.Then I want to introduce it into the Vue component.1. First write my JS file2. Introduction to VUE Components!!! Be sure to use {} to get the name of the met

Previous wordsUnlike CSS transitions, JS transitions are triggered primarily by events. This article will detail the JS transition of the Vue transition effectEvent HooksJS transition mainly through event monitoring event hooks to trigger the transition, including the following event hooksIn each of the following methods, the parameter El in the function represen