Recent questions in Technique[技术]

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Storing and retrieving data for custom Shopify apps

So I am trying to build something for my store but a few things are somewhat unclear. If I need to save some user ... I guess I want to see it somewhere in the order details....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - How to use blade view on index page

in my home controller I want to get and return navigation bar and slider data to my index page.. The problem is that the ... ; } } } Routes: Route::get('/','HomeController@index');...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Schema error using hiveContext.createDataFrame from an RDD [scala spark 2.4]

Trying to run: val outputDF = hiveContext.createDataFrame(myRDD, schema) Getting this error: Caused by: java.lang. ... the data. Let me know if more details are needed...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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elemen table height固定表头 +el-scrollbar。

<el-scrollbar style="width:100%;height:100%"> <el-table border @row-click="tableRow" height="100" tooltip-effect="dark" :header-cell-style="{ ... 截图）你期待的结果是什么？实际看到的错误信息又是什么？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - How to create a chart with chart.js by using data from external api

I have got some data from externel API using http get request. The code is this, export class ProfileComponent implements ... of line chart. I am a beginner in web development....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Detecting if image (in console) is looked at through getter

I would like to make a small script that checks if the console is open. I looked at many posts and most say that it is not ... ? If it is, then how do I use a getter to accomplish?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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高德地图点击地图添加marker，第一次点击的时候会出现marker图标，第二次不会

高德地图点击地图添加marker，第一次点击的时候会出现marker图标，第二次不会，这是什么情况，一下是代码 mapObj = new AMap.Map(' ... infoWindow.on('close', clearMarker) infoWindow.open(mapObj, marker.getPosition()); }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问如何通过API调用json数据并通过html代码显示在页面上？

请问如何通过API调用json数据并通过html代码显示在页面上？ API Curl curl -X GET "https://esi.evepc.163.com/latest/status/? ... accept: application/json" Request URL https://esi.evepc.163.com/lat......

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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489 views

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nginx配置问题为什么加上www跳转不过去呢？

输入domain.top可以跳转到https://domain.top 但是输入www.domain.top却跳转不到https://domain.top怎么办？这个应该怎么配置呢？就是想统一跳转 ... /www/html/domain'; root $root_path; index index.php index.html index.htm; }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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947 views

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promise then 的回调函数是在什么时候进入微任务队列的？

promise then 的回调函数是在遇到 resolve 语句的时候就被加入微任务队列，还是在遇到 then 语句的时候被加入到微任务队列？在网上查了一些资料，发现有不同的说法：比如在《深入理解ES6》中文版 244 页里是这么说的： ... 加入微任务队列，3 4 都认为是在遇到 then 语句的时候被加入到微任务队列的到底哪一种说法是正确的呢？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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399 views

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收到请求，为什么 'user-agent' 信息不全，只有Mozilla/4.0

nodejs request 得到的请求数据 console.log(Object.keys(req.headers)); console.log(Object.values(req.headers)); 打出来如下 `[ 'host', 'content- ... /20100101 Firefox/74.0 是带有操作系统信息的，为什么我拿不到？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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NG-ZORRO 9.1.0版本图片上传缩略图不显示、有bug？

可直接在官网上试一下就知道了，有大佬知道怎处理吗https://ng.ant.design/compone......

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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数组随机交叉

如何将多个数组进行随机交叉？ const a= [1,2,3,4,5] const b= ['a','b','c'] const c= [9,'d','e',6] 数组 d 是一个由上述3个（亦或更多）的数组随机交叉而成。...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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能否用xhr.setRequestHeader()设置header的referer属性？如何设置？还有什么方法设置referer

setRequestHeader直接设置的话会报安全问题。想要请求图片服务器需要添加referer作为凭证。另外我在mdn文档中看到这句话又是什么意思？有些请求头的值只能由 user agent 设置：forbidden header names 和 forbidden response header names...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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202 views

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android studio projects cant run in other disks

i installed android studio on C, but if i try to run a project in other disk with a file system other than NTFS, it ... i create in D, i get this error when run in simulator....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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342 views

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android studio 如何交叉编译

点击这个assemble 生成的都是json这是为啥呢？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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196 views

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c++ - Using multiple VBO in a VAO

I try to use 2 VBO inside a VAO and I end up with a crash (far beyond my app). The idea is to make a first ... . Is my idea a complete garbage ? Or there is something I missed ?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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156 views

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vue 项目http 请求了一个undefined?

运行项目的时候出现了一个请求图片的undefined的，东西不知道是什么，到了测试环境还报404，请问这是什么，我该怎么去掉...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

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关于js两个数组如何生成新的数据结构的问题

参考element的穿梭框，我设置了这样两个数组 let aaa = [ {key:'0001',label:'图片1'}, {key:'0002',label:'图片2'}, {key:'0003',label:'图片3'}, {key: ... label}) => { if(item===key){ return {} } }) }) 请教各位如何实现...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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291 views

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java - creating huge BufferedImage

I'm unable to create a huge BufferedImage (lack of memory is not the problem). Does anyone have any ideas? 1 ... ) at java.awt.image.BufferedImage.<init>(BufferedImage.java:315)...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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353 views

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python - spark-nlp 'JavaPackage' object is not callable

I am using jupyter lab to run spark-nlp text analysis. At the moment I am just running the sample code: import sparknlp ... traitlets : 5.0.5 I appreciate your help .. thank you...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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477 views

1 answer

webpack 怎么压缩 index.html 里面引入的css文件

react 项目目录结构如下 public |-index.html |-theme.css index.html 中引入了 theme.css 现在想在 webpack 打包的时候自动压缩css 能实现吗？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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grafana - How to use WHERE IN with an empty value in MySQL 5.7?

I am trying create a dynamic dashboard in grafana 7.4.x with variables that can be selected. This works with one ... ignore this one where statement (as there are many ANDs)...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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142 views

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vue.js - Vue Component Select option from list item

I'm new to Vue. I have an autocomplete component that used AXIOS to get the data. When I type in at least 3 characters, it ... }); } } } } </script> Any help would be appreciated!...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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272 views

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android - Two fragments are displaying at the same time after pressing back button on added last fragment which wasn't added to back stack

For example I have one activity and three fragments (1, 2, 3). I show first fragment, then second fragment ( ... 's transparent, so the white background - it's activity background...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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467 views

1 answer

mysql json是一个id数组，怎么查找包含指定id的记录？

表中有orders字段是JSON类型，存储这类似 [1, 2, 3]这样的id数组给定一个数组搜索条件[1, 2] 怎么查出包含数组条件任意一项值的记录？ SELECT * FROM trade WHERE orders LIKE "%1%" OR ... 面这个语句一样，但这是通过字符串搜的，效率也非常低下，想请问是否有效率高点的，JSON查询的方式？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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115 views

1 answer

Something about tkinter in Python

I just want to define a class using tkinter, but in the class, the button can not show on the root.This ... __name__=='__main__': Calculator1 = EasyCalculator() Calculator1.show()...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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180 views

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前端面试broadcast

今天面试问broadcast包是干嘛用的。我说没用过。他说做前端应该都知道的。想知道大家有用过吗。什么场景下用的。找到了$dispatch和$broadcast已经被弃用。是Vue 1.X https://cn.vuejs.org/v2/guide... Vue官方文档. 是我孤陋寡闻了。vue1真没用过。文档也是看的少。谢谢各位大佬了...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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