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due to business needs, 1 needs to scale the images of different sizes to a uniform size, 2 and then put them on canvas, 3 write the required text, 4 synthesize the specified QR code, and provide users to save or forward. you need the following fun...
Picture description I want to know why the item, can t be passed, that is, the item that the parent component gets in the loop, why can t it be passed to the child component? ...
created tcp server, tcpserver: var net = require( net ) var mysql = require( mysql ); var conn = mysql.createConnection({ host: localhost , user: root , password: , database: gprs , port:3306 }); conn.connect(); net.cre...
as the title, I don t quite understand Mini Program s [Cold start] and [Hot start] when watching the API on the official website. Can you tell me what their scenes are? What s the specific difference? I don t quite understand the meaning of the d...
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during development, login needs to be encrypted. How to introduce plug-ins ...
let paramArr = JSON.parse(paramArray) let data = []; paramArr.forEach(async (val, i) => { let easywlb = dasign ? tqyybm : (tqyybm.substr(0, 2) === 02 ? ( 12 + tqyybm.substr(2, 4)) : ( 11 + tqyybm.substr(2, 4))); let p...
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<!-- goodsList.vue --> <template> <div id="goodsList"> <div class="goodsListContainer"> <v-scroll :on-refresh="onRefresh" :on-infinite="onInfinite" :loading-text=&...
I found a phenomenon in the development project. In vue projects, the third-party libraries of plug-ins are usually installed in production dependencies, but most of them in react are installed in development dependencies. How to tell which one is instal...
vue.js refs is a VueComponent, so how do I get his height? ordinary tag, just use style.height, how to get VueComponent? ...
now many open source projects use small modules to develop, and finally package and merge multiple modules into a JS file, such as jquery, vue, react and so on. I would like to know what tools are used to complete this step? The most important thing is ...
do I need to upload videos from Aliyun oss through my own server, or can I upload the front-end js code directly to oss? ...
...webpack @ src vue.config.js() @webpackvue-cli : ...
uses vue-cli the version of node is as follows "node": ">= 6.4.0", "npm": ">= 5.0.0" I haven t found it for a long time. Have you ever encountered anything? How did you solve it? ...
problem description the interface returns an array of children when the page is entered and refreshed for the first time, but the page displays empty when it gets children data. Figure 2 shows the data output from the console. related codes ge...
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the request headers for seeing Xiami Music are: if you set it yourself at the beginning, you will report an error . TypeError: Header name must be a valid HTTP Token [":authority"] ...
< H1 > has been solved. The configuration has been modified. Thank you < H1 >. entry: { vendor: [ jquery , better-scroll ], home: . src pages home index.js , login: . src pages login index.js }, new webpack.optimize.Co...
< H1 > question < H1 > v-model is originally a grammatical sugar but today, when I was writing a new project, I suddenly found that I had made a mistake. <input v-if="codeModel" v-model="code" type="password" ...