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typescript - Angular Material 11.0.3 + Tailwind CSS not working

I'm using Angular CLI 11.0.6 on NodeJS 14.15.4 to make a web application for learning Angular(11.0.7) along ... in these troubled times. Thanks a lot for helping or reading this....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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cURL error 28 Operation timed out after 6001 milliseconds

最近项目遇到了一种情况当程序第一次运行请求接口的时候会报 Operation timed out after 6001 milliseconds 这种错误然后第二次正常运行请问这是什么原因呢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Proper way to render integer array as a string with commas in JSX

Is there a way to render something like this: ["1", "2","3"] as1,2,3,4,5 in React? render(){ <p>{this.numberResult ... like: 123 in the browser but I would like it to return 1,2,3...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Spring-Boot JPA - Inserting into Two Table Relation Inheritance with single forms in angular

I'm attempting to save records to a database two table that includes a foreign key using Spring-Boot and angular but I ... patient at the same. any help can be appreciated thank uu...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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js audio.pause()有时候无效

打开页面的时候循环播放一个mp3文件，调用接口成功后audio.pause()，但是有时候无效 var url = warningMp3 vm.audio = new Audio(url); vm.audio.src = url; vm. ... if(res.ErrCode == 0){ vm.audio.pause();//暂停语音播放 } 有时候无效...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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覆盖在iframe上的按钮点击事件失效问题该怎么解决?

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asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Error - trustAnchors parameter must be non-empty

I'm trying to configure my e-mail on Jenkins/Hudson, and I constantly receive the error: java.security. ... Windows Hudson server, but I am struggling on Linux....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - Convert algorithm to Python to measure angle between multiple vectors

I have a df containing various sets of xy points at successive time intervals. Using below, xy points of multiple subjects are referenced in ID, ... 1.0 1.0 3.5 1.0 0.0 0.0 0.2783...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Creating android form fields dynamically based on database entries

I am creating an inventory application in Android using Java. The application logic is as follows: Admin creates product ... . Can anyone kindly nudge me in the right direction?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Excel VBA - "Run-time error '13' Type mismatch"

I am a relative novice at VBA. I am attempting to flag keyworded cells (ColumnA) in excel using a list of keywords (ColumnC), ... ").Value = Mid(outpt, 2) End If Next i End Sub...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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batch file - cURL requests hanging

I have been working on a batch script for some automation in the workplace. We have a Watchguard firewall ... version: WatchguardFireBox M670 running Fireware OSv12.6.2.B631387...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - app icon is not updated with shield values for the andriod versions > 8

I can see the icons updating with shield values config and version, at locations src/main/res & src/debug/res. After ... /mipmap-*/launcher_icon.png", shield_scale: "0.90" ) end...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Populate value A with value from variable B in Thymeleaf

@RequestMapping("/new") public String addNewClient(Model model) { UserForAdmin userForAdmin = new UserForAdmin(); model.addAttribute(" ... :value="*{packages}" but it doesn't work....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dart - How to connect API in infinite_view_pager widget - flutter

I want to get data from API. I have no idea how to connect it.. I am for a beginner for this. this is the widget documentation ... }); }else{ pnews = []; isLoading = false; } } }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue 点击标题请求数据

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asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to create a new csv file with only modified datas?(Pandas)

I want to create a new csv file with only modified datas. The input csv file is of example as input.csv Now ... dataframe for modified datas in this case? Any suggestions or ideas?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Error in converting pine scipt from version two to four

I had a version 2 pine script to plot vwaps which I converted to version 4. after having a closer look at the converted script, i ... ", color = color.red, linewidth = 2)][1]][1]...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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symfony4 - How to add serializer in the services xml file?

I am trying to use Serializer Component in shopware 6 I have create a Serializer Class which I want to inject as DI ... "/> </call> <service> Can anybody help. Thanks....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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purgecss-webpack-plugin使得webpack懒加载文件里的css全都没了

这两个是不是不能配合使用？我打包出来的css只剩下首页面了...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Makefile/Cmake hide "conflicting types" error

I am trying to compile a program in CLion and am getting the error "conflicting types" and "previous declaration of... ... way to hide this error with some cmake flag or something....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - gulp concatenate multiple js files but dependency path cause error

I am using Nodejs- v12.9.0 & gulp-4.0.2 I am concatenating all my js files from root & src directory in to a single file ... allJs.js')) .pipe(terser()) .pipe(dest('dist/src')); }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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JSON.stringify()处理一个对象的时候，忽略了对象中的方法，怎么处理

const a = { test: 1, func() { console.log(1111) } } const b = JSON.stringify(a) console.log(b) // {"test":1} 如示例，在对一个包含function的对象进行JSON.stringify()时，function会被忽略掉，请问如何解决这种问题...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Copying multiple files in the same directory using a package.json script?

This works on the command line: cp target/{sitemap.xml,robots.txt} ../fs-dtest-app/ But if I put the command ... /{sitemap.xml,robots.txt}': No such file or directory Thoughts?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - What does question mark (?) mean in webpack's entry?

I'm learning webpack and came across an example webpack.config.js that looks like this: module.exports = { entry: [ ... to the module webpack-dev-server/client, am I right?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Dynamic facets in algolia

I am building an E-commerce website with the ability to add products with multiple variants, but I have a problem ... able to display facets for both the Color and Size options...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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初学，关于javascript的问题？

菜鸟一枚，刚学javascript，有个实例化对象的问题想问一下各位： function b() { alert(1); } var a = new b(); alert(a()); function b() { alert(1); } var ... 是上面两种都不行，请问为啥第一种在浏览器上报错，第二种是Object object/(ㄒoㄒ)/~~...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pivot后的结果怎么访问列

对下面股票行情表t1进行计算每分钟的交易量的加权平均值得到stockprice： syms=`BIDU`MSFT`ORCL$SYMBOL sym=syms[0 0 0 0 0 0 0 1 1 1 1 1 1 1 ... 报错"Incompatible type. Expected: INT, Actual: STRING",如下图所示：请问这是为什么？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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