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javascript - Is there a better way to handle nested promises in NodeJS?

I have code that looks something similar to: const MyClass { checkExists: function(db_client) { return new Promise(fulfill, ... .log(error); }); See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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awk - how to perform a search for words in one file against another file and display the first matching word in a line

I have an annoying problem. I have two files. $ cat file1 Sam Tom $ cat file2 I am Sam. Sam I am. Tom I am ... "grep -f file1 file2" won't work. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ocr - Using Tesseract to read dates from a small images

I have a rather small set of images which contains dates. The size might be a problem, but I'd say that the quality ... 4.1. with Pytyon 3.9. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql server - How to update a varbinary column with base64 string to bytes?

I want to update a varbinary column with base64 string (an image) to bytes in SQL Server. Does anyone know how ... the image in bytes. Thanks! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to write a function that takes a model as an argument in R

Some functions in R can take a model as an argument. For example,the function lm(weight ~ group) takes "weight~group" ... </td> </tr> </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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javascript - Avoid no-sequences inside map function

I have a array which I want to loop through so I use the map prototype. Inside the callbackfn of each ... expressions inside the map function? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Error : std::length_error at memory location

When I call transpose function I got this error: Error : std::length_error at memory location I do not know exactly ... result; /// Error here } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Using an If statement in PHP but not working

What I want to do is When I enter all my information (for client ID 199 in the picture) In my account being submit it ... // echo "vpr_id: ".$vars->vpr_id."<br>"; mysql_close($link...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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go - Why address of element in slice is the same? and how to copy them to a pointer?

I have a piece of code: //initialize a slice arr := make([]int, 0) arr = append(arr, 1, 2) for _, k := ... ? why the value of arrP[0] is not 1? 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 - AJAX model to controller

Is it possible to pass my view Model to the controller, using ajax, without 'rebuilding' the object? I have ... before being sent to the view. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to parse unreadable json?

{ "12": { "_agicId": 2, "_index_": "", "_seq": 1 }, "11": { "_agicId": 1, "_index_": "", "_seq": 2 }, ... { // how can i get "11"{"agicId":0} } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - New activity not opening

I'm an italian student developing an Android application with the latest version of Android Studio and with ... /application> </manifest> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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vba - Macro that looks for a value in a cell & then paste a range in the column of that cell. EXCEL 2007

I'm trying to write a VBA code that automates a step I do everyday but I just can't. In the column B ... then paste the values in that column. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to input Array in R

Hello please find below mentioned code. what i want is to add values to my array on the basis of certain ... whose length is less then 30. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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.net - c# combobox has a datasource, how do i make it display a specific element?

i have a datatable as the source of a combobox: 1 3 2 4 5 without knowing the order of the elemnts inside the ... a specific element like '4' ? 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.sql.SQLException: ORA-01843: not a valid month error

I am getting date in html 5 input type = "date" format..in mm/dd/yyyy format. Then I am getting it String ... : ORA-01843: not a valid month 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 - Why does hypothesis consider this code slow?

Hypothesis complains vehemently that this was slow: @composite def f_and_g_and_padding(draw, in_channels = channel_ints ... .too_slow]) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Iterating <a> & Typescript optimization

A piece of code - I realize that: content in the div could be optimized with a loop typing in typescript is not necessarily ... /a> </div> ); }; See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sapui5 - Uncaught (in promise): Error Cannot instantiate object new is missing

I have a controller: Menu.Controller.js: sap.ui.define([ "sapit/ext/utils/BaseController", "sap/ui/model/json/ ... in this regard. Thanks !! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c - Resolving equal XOR values for different strings for anagram detection

I recently had an interview question where I had to write a function that takes two strings, and it would ... on the mathematics behind XOR? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ibm mobilefirst - Error on real device . White screen and error:multiple define and script error on dojo.js

Worklight 5.06 and Dojo 1.8. The app works on android emulator and web browser but doesn't works on real device. ... first "busy" isn't hide. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - Notification - cannot resolve symbol setLastEvenInfo

Months ago I wrote a code that my Notification worked as bellow : NotificationManager NotiManager = ( ... create a Notification? 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 - Easiest way to extract fields from JSON

Update: I should have mentioned this right off the bat: I first considered a Java/JSON mapping framework, ... appreciated. Thanks in advance. 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 - I am looking for a good example of adding an image to an applet

I am trying to add an image to my applet. I have googled this but I have not found a decent example that I ... ></applet> </body> </html> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How do i go about counting how many times a messagebox appears in c#?

I am trying to get my program to Count how many times a certain messagebox in my program appears while it is ... code for strings and arrays. 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 - how to make body tag elastic?

<body> <div id="div01"></div> <div id="div02"></div> <img id="img01" src="..."> </body ... be 400px. And still staying horizontally centered. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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regex - Regular expression for replacing `<del>` tag inside style and script tag blocks

I want a help from you to strip <del> tag from <script> and <style> tags blocks e.g. Input: <style ... from script tag and style tag block. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - I Help and Advice on using Oledb for large excel Files

So I am new to Oledb and I a have project that requires me to grab data from an excel file using a Console ... get data from columns past 255? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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