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127 views

1 answer

javascript - Slider toggle button in react native?

I would like to add one of these slider toggle buttons to my react native app. Are there any easy ways to do this without starting from scratch? Example video...

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

0 votes

506 views

1 answer

在webapp中，子元素未加载，导致父元素高度坍塌应该怎么解决？

问题描述 vue+vant写一个webapp，以文章收藏页为例结构为navbar+list+tabbar，文章列表是自己改造的组件，主要实现下划无限加载在刚进入文章收藏页时，文章列表没有加载出来，navbar和tabbar之间高度就没有撑起 ... 度，tabbar保持在页面的底部，且适合移动端webapp的解决方法希望路过的大佬能够指点一下，非常感谢！...

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

0 votes

545 views

1 answer

antd 的table在编辑单元格时，不走接口，全部编辑完点击保存按钮，再走接口可以吗？

用的antd的V3版本 https://3x.ant.design/compone... 没找到可以点按钮的方式，都是监听input 的事件，想在点击保存时再走接口，有可以实现的方法或者思路吗？求大佬们围观...

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

0 votes

284 views

1 answer

java如何获取某个文件夹下所有.class文件？

目前我这边只完成了同步的循环扫描并获取.class文件，但是如果文件多的话这样效率会比较低，我这边目前想的是每遇到一个子文件夹就从线程池中获取一个线程去扫描，现在遇到的问题就是，如何把这些子线程的class文件统一设置到一个set集合并返回？...

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

0 votes

1.8k views

1 answer

element-ui 在表格中使用树形控件，点击子节点，如果下级节点数量超出屏幕高度，就会关闭所有节点

点击子节点后会有弹出下级节点的动画效果，然后马上所有节点都被关闭；如果子节点的下级节点数量没有超出屏幕就是正常的...

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

0 votes

122 views

1 answer

关于chrome请求头的问题？

在这个请求头中的日期有问题，时区有问题这个该如何处理？...

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

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490 views

1 answer

vue 封装一个递归怎么使的方法调用时每次result都为新数组（不是递归的时候）

` const result =?[] export function flatten(arr)?{ for (let i = 0; i < arr.length; i++)?{ const item = arr[i] ... (item.childNodes) } else { result.push(item) } } return result } `...

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

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500 views

1 answer

golang开发 rpc 应用时，对于rpc服务的目录结构如何合理规划

对于rpc服务端开发时，生成的.pb.go文件，除了服务端使用，客户端也要使用这个文件，这个文件放在什么位置才是比较合理？有无参考的目录结构？...

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

0 votes

368 views

1 answer

关于Composer自动加载问题。

我的开发环境： PHP : 7.3.4 Apache : 2.4.39 Composer : 1.8.5 用Composer1.8.5来开发PHP框架，用PSR-4自动加载规则具体目录： App | ... ; class HomeController{ public function index(){ echo 'hi'; } } 那这个如何解决？...

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

0 votes

222 views

1 answer

typescript el-dialog打不开

最近用vue+ts+ele改写项目,写弹窗组件时碰到了一些问题 el-dialog弹窗isShow 数据变了但是弹窗打不开,设置isShow默认true时,关闭方法不执行,请问我这是哪里出现了 ... isShow: Boolean = false; private open()?{ this.isShow = true; } } </script>...

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

0 votes

251 views

1 answer

p5.js - JavaScript select same row, multi columns (CSV)

This is is P5.js and it's a very stupid and simple problem. https://editor.p5js.org/kornfusion/sketches/5xtb88Ntn for ( ... data from CSV file and go through each row to find MAC....

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

0 votes

548 views

1 answer

React hooks添加依赖项导致无限循环的问题？

const routeMatch: match | null = useRouteMatch("/user/detail/:id"); const fetchData = useCallback(() => { Axios.get(`/api/admin/user/get?id=${ ... 次渲染后都会引发再次渲染，于是产生无限循环如何解决这个问题？...

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

0 votes

344 views

1 answer

Vue项目利用websocket和终端保存实时通讯如何保证watch有效输出

主要使用watch监听消息，实时在页面中显示，若连接过程中，某一些时间点，终端返回的消息数量突增并且数据很多，易造成渲染次数过多，容易造成页面崩溃，有没有什么解决办法...

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

0 votes

109 views

1 answer

python 订阅接口中的filter应该如何设置

假设我在DolphinDB发布端已设置了过滤列symbol，代码如下所示： share streamTable(10000:0,`time`symbol`price`id, [TIMESTAMP,SYMBOL,DOUBLE,INT]) as trades ... python中应该如何写filter参数?{"symbol": ["000905",]}这样吗？...

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

0 votes

262 views

1 answer

正则表达式-大小写转换的问题

想直接利用正则实现大小写转换，但 U、L 这样的表达式在 js 中没有效果？对 idea 这样的替换工具是有用的。 "foo_bar".replace(/(_)([a-z]{1})/,"U$2") --> "fooUbar"...

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

0 votes

523 views

1 answer

目前主流的推送方式有哪些，web和app的

第一反应就是想到websocket，但是如果量大好像也不太合适，好像很吃资源...

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

0 votes

192 views

1 answer

webpack3使用CopyWebpackPlugin报错

new CopyWebpackPlugin({ patterns: [ { from: path.join(__dirname, './robots.txt'), to: path.join(__dirname, './dist') } ] ... ` 已尝试过网上说的修改webpack版本，extract-text-webpack-plugin，都不行...

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

0 votes

519 views

1 answer

nodejs图片转为bse64后压缩问题

我想在读取图片的时候输出压缩后的base64内容目前是这样读取读片转base64的，没有被压缩 let im = fs.readFileSync(picPath); let img_base64 = 'data:image/png;base64 ... 目标求助在这个issue中，虽然图片被压缩了，base64大小并没有被减少 node-images...

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

0 votes

173 views

1 answer

正则表达式-大小写转换的问题

想直接利用正则实现大小写转换，但 U、L 这样的表达式在 js 中没有效果？对 idea 这样的替换工具是有用的。 "foo_bar".replace(/(_)([a-z]{1})/,"U$2") --> "fooUbar"...

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

0 votes

238 views

1 answer

nginx - Trouble accessing host on Homestead/Vagrant box via the browser

I have a Laravel Homestead (Vagrant) box, using Oracle VM VirtualBox, under Windows 10. This is a Ubuntu ... either domain, I get unable to connect, ERR_CONNECTION_REFUSED etc....

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

0 votes

322 views

1 answer

python - Reset numpy random generator instance

I need independent random generator instances with the ability to reset. For Python's built-in random generator I wrote the ... maybe you can point me to a better solution... ?...

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

0 votes

589 views

1 answer

react-redux中做异步添加reducer，但是无法通过context获取store，什么原因？

求帮助现在是想做异步加载模块，动态添加reducer，需要获取到根store store.ts import { createStore, combineReducers } from 'redux'; export function ... ={CreateStore(CounterReduce)}> 求帮助分析一下，怎么才能获取到store呢？...

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

0 votes

1.1k views

1 answer

关于vue 长列表可视区域渲染问题

参考了大佬的文章https://zhuanlan.zhihu.com/p/... 模仿着自己实现了一个长列表可视区域渲染功能代码如下(基本和原文一致) 滚动组件 <template> <div class="list-view" @scroll= ... 总高度,但是滚动到下一个的时候会发现 scrollTop 过大导致直接偏移不准确求大佬求思路~...

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

0 votes

264 views

1 answer

Python 处理亿级数据量有什么方案？

最近遇到一个问题，要把2亿多的数据插入到 ES 中。现在的方案是：生成器分段读取文本内容，再对每行内容进行处理，放入到一个列表 ES 方面是循环这个列表，每次取 500 条批量插入到 ES 中以上方案速度巨慢，跑了一两个小时才1900万，不到2000万，请问这种情况有什么好的方案？...

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

0 votes

904 views

1 answer

How to connect consumer to Kafka topic with MassTransit using state machine

When there are two services: Service 1 hosts state machine and produces message on topic. Service 2 should consume this message. How ... <OrderConsumer>(ctx); }); }); }); });...

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

0 votes

539 views

1 answer

有n个业务员，每天有n个订单，我怎么统计出每个业务员每天有几个订单。数组表格显示。

比如说，这样一个表格，要显示业务员姓名，账号，还有每个业务员的今日订单总数我的订单表是这样的业务员A 9月29 16:09 ~~ 一个订单业务员A 9月29 16:19 ~~ 一个订单业务员A 9月29 16:21 ~~ ... 09 ~~ 一个订单我会统计每个业务员的总量但是我不懂怎么把每个业务员的今日总数跟自己的名字一起拼接回来 ...

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

0 votes

177 views

1 answer

java - Test Log output using assert where Log has some pattern configuration

I am trying to test the output of the logs which have some patterns to exclude in my config file. In the logs I have ... on the screen not what I have given in the log.info....

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

0 votes

381 views

1 answer

google colaboratory - How do we find any paths of specific libraries/tools that are present in collab Notebook?Are there any commands to find?

While executing the command make,I encountered this problem ` /usr/local/cuda-10.0/bin/nvcc -ccbin aarch64-linux-gnu-g++ -I. - ... 'nb_gpu.o' failed make: *** [nb_gpu.o] Error 1 `...

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

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