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Convert specific values into columns in R
    I have a data table that looks like this: ID time somevalues change 001 12:33 13 NA 002 12:34 27 ... R without using multiple if statements? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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java - unable to watch expressions in eclipse
    I have a Maven project which is cloned from Git. Project was successfully built and runs perfectly. However when i ... me how to resolve this? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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pass C# variable into javascript code
    I have code lines like this public double bl = 0; browser1.EvaluateScriptAsync("document.querySelector('.amount') ... into the javascript code? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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Access control to names of members in C++
    While reading The C++ Programming Language by Bjarne Stroustrup, there's a few sentences that i have trouble ... above tries to convey. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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java - Trying to convert this activity into a fragment in android studio, no luck till now
    This is my test activity and I want to convert this into a fragment. Please guide me how to convert this activity into a ... ).show(); } } } } See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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javascript - Understanding negative numbers in recursion
    I'm just getting my head around recursion in javascript using the book Eloquent Javascript but don't fully ... be really appreciated. Cheers. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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asp.net mvc - Best Way to compare 1 million List of object with another 1 million List of object in c#
    i am differentiating 1 million list of object with another 1 million list of object. i am using for , foreach but ... .Add(SourceList [i]); } See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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ms access - Button click event not doing task as expected
    I am having these table : tblLibraryItem : ItemID , MediaType , ItemName , DateAcquire , Status , CheckedOut , ... Please help to correct it See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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mysql - SQL Query : Find max 2 of 3 number and store it in another column
    I have a table named result having column name, rollno, sub1, sub2, sub3, max1, max2 etc. sub1, sub2, sub3 will store ... 25 32.5 33 64 51 57.5 See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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Putting image from gallery in ParseFile in Android
    I am working on a parse.com Android application, in which I am putting my predefined/default image in ParseFile and sending ... ()); } } }); See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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amazon web services - Launching EC2 in multiple regions using boto3
    I am using below code to launch EC2 instance import boto3 client = boto3.client('ec2',region_name='us-east-1' ... suggest how to achieve this ? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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javascript - How do I enable a third party payment gateway which Shopify does not want to support?
    Same as this question which got an accepted answer, but the only answer doesn't cover plan B - what if ... assuming this can be done safely See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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mysql - Java JDBC -insert record into database only if it does not exist
    I have a method to check whether or not a record exists within a database. It should return false if the record is ... sqlEx) { } } } } See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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Attach multiple files to email in CakePHP
    I want to attach 5 dynamic text file in mail but not working. I send single attachment in email working perfect my ... ,'path/to/example5.txt'); See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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utf 8 - UTF-8 issue with CoreNLP server
    I run a Stanford CoreNLP Server with the following command: java -mx4g -cp "*" edu.stanford.nlp.pipeline. ... the CoreNLP server I run? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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mysql - Php Script to Calculate Cumulative Totals for Accounts
    I have the following set of data in a MySQL database table CusName CusID Quantity Date Test1 1 2 2017-01-01 Test1 1 ... Test4 4 6 10 2017-01-19 See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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javascript - Html body "onload" is not working in Chrome
    I have written sample web application with servlets and jsp. As per the below code the action url should be ... in the above action url? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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embedded - Confusion in file Verification with CRC16 in C
    Here i want to know the how can i implement calculate CRC16 for Any type of file, Here i have idea about CRC16 ... , chCnt); return (result); } See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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python - How to extract the value from the <td> by using selenium
    So i'm using selenium webdriver to parse date from web site by (class_name, tag_name, Xpath, css_selector) and all my ... </tr data-v> </table> See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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maximo anywhere - Side menu issue, only in screen showing 25% of side menu
    Side menu issue, only in screen showing 25% of side menu See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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php - Why can&#39;t sleep(3) before login check prevent brute force?
    In a PHP login script, why wouldn't this pseudocode prevent a brute force attack? Of course it's still ... useless for any normal password? See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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php - #1064 error with INSERT INTO
    I have a PHP script produced by using Export in phpMyAdmin. When trying to Import elsewhere from that script I ... more likely my newby status. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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objective c - Convert Hex string to IEEE 754 float
    I am trying to convert a nsstring with hex values into a float value. NSString *hexString = @"3f9d70a4"; The ... " floatValue]]; result:3.000000 See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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ios - how to group array of nsdictionary according to the value inside the element
    I have array of dictionary that needs to be grouped according to PO which is part of the element and also get the ... and make it easy to read. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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Power BI Integration with Spring Angular
    i'm currently developing a web application using Spring/Angular. I need to integrate Power Bi in my application to ... get started ? Thank you. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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javascript - Get ID and Value from a checkbox: Return to model and use in method to insert into sql database
    I'm trying to create a checkbox list where a user is supposed to be able to choose one or more options, based ... that can help me solve this. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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css - CSS4 Selectors and browser
    I would like to test (reason : just curiosity) CSS4 selectors and particularly the CSS pseudo-class :not() with a ... ~ h2) { color:red;} See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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vb.net - error in my vb program of cmd.executenonquery
    I am getting the following error: Unhandled Exception: System.Data.SqlClient.SqlException: Incorrect syntax near ' ... repeating such mistakes. See Question&Answers more detail:os...
asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)
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