Welcome to Jonic Developer Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

Recent questions

0 votes
170 views
1 answer
    I am learning the ropes in Python. When I try to print an object of class Foobar using the print() function, I get an output like this: <__main__. ... adding a friend ostream& operator << (ostream&, const Foobar&) method for the class....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
268 views
1 answer
    The Amadeus Java SDK source code gives the example FlightOrder order = amadeus.booking.flightOrder.("eJzTd9f3NjIJdzUGAAp%2fAiY=").delete(); But it seems that this always ... a certain time? Thanks in advance! edit: Might be related to this?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
385 views
1 answer
    I'm really new to Python (really, really new). This is the problem i need help to solve: I have a list of images URLs inside a txt file. There are around ... file name and the extracted text from image inside a .csv Thank you very much :)...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
563 views
1 answer
    el-checkbox check属性为true但页面却没有打勾,这是什么鬼? 具体情况: <el-checkbox v-for="itm in fieldList" :label="itm.label" :key="itm.label" :checked="itm.checked" border >{{ itm.checked + itm.label}}</el- ... 困惑,虽然这极有可能是一个很简单的问题但是作为前端小白的我还是不太懂,希望有知道的老哥帮忙看一下...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
    I am using a colleague's code that handles network stream information using struct.unpack and I was wondering if someone can give me an explanation of what the ... have no idea what is happening in this piece of code. Appreciate the help!...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
787 views
1 answer
    I'm learning to code discord bots and I'm trying to add a 'money' function that will add 'money' to the user 'account' every time he sends a message. ... 0, 299561981311057920: 5.0} I would like it to write: {'299561981311057920': 10.0}...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
747 views
1 answer
    已经安装好了node.js,express,express-generator 然后运行: 请求后端接口报错了: 在本地运行都能访问的: 在网上查找一番后,修改了一写地方: 项目配置: express的packpage.json: 但是还是没有解决,还是报404 不知道怎么回事,求解答~...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
704 views
1 answer
    What is pivot? How do I pivot? Is this a pivot? Long format to wide format? I've seen a lot of questions that ask about pivot tables. Even if they don't know that they are asking about pivot ... 1 0 0 To 1|1 2|1 2|2 a 2 1 1 b 2 1 0 c 1 0 0...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.1k views
1 answer
    参阅element的文档,设置默认展开项就是expand-row-keys,但是设置了以后点开弹框时树形表格得图标看上去是展开了,但是children没有加载出来的样子,还是需要点击图标才能加载 不知道是否是设置了懒加载的问题 看调试工具里 ... ) } }, deptId(val) { if (val) { let valtostring = val.toString() this.defaultExpandKeys.push(valtostring) } } },...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
893 views
1 answer
    Is it possible to edit the 'Comment' label in the Comments section at all to some wording of my choice? Maybe with CSS? Many thanks,...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
903 views
1 answer
    I am shuffling an IEnumerable using OrderBy and Random() and then selecting some of them using ElementAt. Simplified version: var r = new Random(DateTime.Now.Millisecond) ... but not multiple times in a single view). What am I doing wrong?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
996 views
1 answer
    I have REST API, that is hosted in Azure. If I make request in interactive console with GET method ('/api/pets'), request goes through just fine. But ... azure portal only in specific API, but it doesn't work Everything works fine locally....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.1k views
1 answer
    最近公司要做一个积分任务系统,做任务获取积分 但是在表如何设计这块找不到相似的例子,百度上也搜不到,希望各位能提供下思路 需求:任务中心页面,可以查看当前所有的任务和进度 类似如下: 任务分为新人任务,每日任务,永久任务等,每日任务又有限制次数,比如每天只能收藏 5 次,签到 5 次等 现在我的想法是设计一个 ... 联表吗? 这样的话如果用户没有进任务中心,直接收藏,该怎么加这个积分? 如果用户一注册就初始化用户-任务关联数据,好像也不太对,所以希望能够提供下思路,谢谢...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
907 views
1 answer
    I want to implement this without using the sorted function (perhaps by using a priority queue): nums = [2,3,1,3,2] dic=collections.Counter(nums) sorted_dic= dict(sorted(dic.items(),key=lambda x: x[1]))...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    Consider the following code int main(){ return 0; } I compiled it with g++ and passed the output to valgrind. The output is the following. ==11752== HEAP SUMMARY: == ... linux (solus os) with g++ 6.3. Can someone explain what's going on ?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    im geting a error 500 (Internal Server Error) when trying to upload a image with a API. This is the code I use: fnguardar(event) { const fileN = event.target. ... "file" id="img" name="img" @change="fnguardar($event)" /> What I′m missing?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
    I am asked on C++ primer 5th edition this exercise: Exercise 17.10: Using the sequence 1, 2, 3, 5, 8, 13, 21, initialize a bitset that has a 1 bit ... how can such 1000000010000100101110 represent the sequence 1, 2, 3, 5, 8, 13, 21?....
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    I have a table below my search input like below: how to select the appropriate item from the list below using the arrows on the keyboard? additionally, it would be good if ... > </div> I have no idea how to do this :( thanks for any help...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.3k views
1 answer
    I am using workbox-build (version 5.1.4) in Grunt to generate a service worker for an AngularJs project. I use workbox-window (version 5.1.4) to load ... swDest: user_config.app.base_dir + '/sw.js' }) Any help would be greatly appreciated....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    I'm new learner.. Write a complete code to show a Toast containing text from the EditText when the button is clicked. Assume in the xml file, EditText xml id=’MyEditText’ and button xml id=’MyButton’....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    I may not even know enough about interacting with HIDs to ask a good question, but here's my best shot so far. I am using C# and am on ... the device itself, or would this information need to be provided by the controller manufacturer?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    language: [ { value: 'EN', label: '英文' }, { value: 'CN', label: '中文' } ] 用a 和language去匹配 如果 a= 'EN' 那就返回英文 如果a= 'EN,CN' 那就返回英文,中文 如果a= 'CN' 那就返回中文...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    I want to compute auc_score with out using sklearn. I have a csv file with 2 columns (actual,predicted(probability)). And I want to compute auc score using ... is there there any better/any way to compute auc score with out using sklearn....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    I have a table called device with following data types device table: column Type id integer created text name text Here the time is stored in text type instead of ... in this case to get data w.r.t time eventhough its stored as text...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.3k views
1 answer
    I am making a csv constructor but I have some problems. I have files like this characteristics.tmp 1083108343 1083108360 1083108378 1083108386 I have to build to ... the end of every line? So why is not detecting the others? ,1083108386...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.2k views
1 answer
    请求大佬!!!在页面强制刷新图片更换成功了 但是手机app还是原来的图片...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.1k views
1 answer
    I'm trying to make a circular stopwatch in react ionic but the currentValue is not getting updated properly! The spinner (react-countdown-circle-timer) is ... ; export default StopWatch; Thanks for your time, any help will be appreciable....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
    I'm wanting to represent a directed network graph that is closed, e.g. where the edges would look like: N1->N2 N2->N3 N3->N1 Where each node has ... I'm not sure this is possible to represent due to the restriction on cyclic dependencies....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
Ask a question:
Welcome to Jonic Developer Community for programmer and developer-Open, Learning and Share
...