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javascript - Module build failed (from ./node_modules/babel-loader/lib/index.js): Error: Cannot find module 'babel-preset-react'

I'm stuck with the following error when trying to build a react app with Webpack4 and Babel7. ERROR in ./src/ ... ", "@babel/preset-react"] } See Question&Answers more detail:os...

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windows - Why does ping work without administrator privileges?

as you may know one is unable to create RAW sockets using Windows Sockets without having administrative ... /o administrative privileges? See Question&Answers more detail:os...

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C# removing items from listbox

I have a listbox being populated from a SQLDATA pull, and it pulls down some columns that i dont want like ... if the list does not change. See Question&Answers more detail:os...

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performance - Java Collections and Garbage Collector

A little question regarding performance in a Java web app. Let's assume I have a List<Rubrique> listRubriques ... might create a memory leak? See Question&Answers more detail:os...

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firebase - "The operator '[]' isn't defined" error when using .data[] in flutter firestore

I am learning to use firestore in flutter following Net Ninja's tutorial on youtube. After user authenticatin was ... me know in the comments See Question&Answers more detail:os...

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r - Remove space between bars ggplot2

This is my code ggplot(df, aes(x=timepoint, y=mean, fill=group)) + geom_bar(position=position_dodge(.3), ... 0.08348542 1.000000000 1.0000000 See Question&Answers more detail:os...

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java - SwingWorker ProgressBar

I am trying to get a progress bar to accurately reflect my SwingWorker. But I really can't figure out how to do it. ... "); System.exit(0); } } See Question&Answers more detail:os...

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python - "[Errno 101] Network is unreachable" when trying to send email using Django

For some reason I am getting this error when trying to send an email (with gmail) using Django. [Errno 101] Network ... to how I can fix this? See Question&Answers more detail:os...

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couchdb - How to do partial update of a document

I need a guidance on how can I update a field in CouchDB. I tried curl via console it works fine but ... Content-type", "application/json"); See Question&Answers more detail:os...

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python - How to pass additional parameters to numba cfunc passed as LowLevelCallable to scipy.integrate.quad

The documentation discusses using numba's cfuncs as LowLevelCallable argument of scipy.integrate.quad. I need the same ... same thing in Numba? See Question&Answers more detail:os...

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c++ - Pointer array and sizeof confusion

Why does the following code output 4? char** pointer = new char*[1]; std::cout << sizeof(pointer) << " " ... should have length 1, shouldn't it? See Question&Answers more detail:os...

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r - Matching a sequence in a larger vector

I'd like to have a function which returns the initial indicies of matching subsequences of a vector. For example: y < ... (which(out)) } } } See Question&Answers more detail:os...

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Python Pandas concatenate a Series of strings into one string

In python pandas, there is a Series/dataframe column of str values to combine into one long string: df = ... to the goal concatenated string? See Question&Answers more detail:os...

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javascript - How do I add a DOM element with jQuery?

I have a funciton that I am currently using to show a hidden div.a_type How can I modify this code so that instead of ... alt", count); }); }); See Question&Answers more detail:os...

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swift - iOS 11 Floating TableView Header

Have an app going with multiple sections, a few rows per section when "expanded", none when "collapsed". Each ... there's that. Any ideas? See Question&Answers more detail:os...

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excel - Difference between Thisworkbook.name and Activeworkbook.name in VBA

Is there any difference between Thisworkbook and ActiveWorkbook. Example code : Sub workbook_name() MsgBox Thisworkbook. ... doesn't work See Question&Answers more detail:os...

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python - Finding the most frequent character in a string

I found this programming problem while looking at a job posting on SO. I thought it was pretty interesting and as a beginner ... ', 2) ('o', 2) See Question&Answers more detail:os...

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java - OffsetDateTime yielding "No injection source found for a parameter of type public javax.ws.rs.core.response" in GET method

I have the following GET REST method: import java.time.OffsetDateTime; import javax.ws.rs.Consumes; import ... REST services and OffsetDateTime? See Question&Answers more detail:os...

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r - How to get a second bibliography?

In rmarkdown PDF and HTML I want two bibliographies—one for papers/books, and one for software I have used in ... explain how to do this? See Question&Answers more detail:os...

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Remove specific HTML tag with its content from javascript string

I have the following string variable and I want to remove all a tags with its content from the string. var ... is for all tags. Thank you See Question&Answers more detail:os...

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amd processor - Android Studio emulator and AMD CPU

I can't run my app on standard Nexus 5 emulator. It seems it requires Intel HAXM but i have an AMD ... Intel processor (or installing Linux)? See Question&Answers more detail:os...

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c - Why and how does GCC compile a function with a missing return statement?

#include <stdio.h> char toUpper(char); int main(void) { char ch, ch2; printf("lowercase input : "); ch = ... answer in this case. Thanks :) See Question&Answers more detail:os...

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html - How to change cursor color without changing text color?

I want to have the cursor #FFF while my font is #000. Is that possible? See Question&Answers more detail:os...

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python - PyQt4 - creating a timer

I'm sorry for the question but I have read a bunch of things and it seems that I do not get how to make a ... . I'd appreciate some help : ) See Question&Answers more detail:os...

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c# - Asp .NET Button - OnClientClick="return function()" vs OnClientClick="function()"

In an asp.net user control I have a button: <asp:Button ID="addButton" runat="server" Text="Add" ... is the difference between the two? See Question&Answers more detail:os...

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How to hide zero values in bar3 plot in MATLAB

I've got a 2-D histogram (the plot is 3D - several histograms graphed side by side) that I've generated with the bar3 ... z(z==0)=NaN; bar3(z) See Question&Answers more detail:os...

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java.io.FileNotFoundException in eclipse

Code: import java.io.*; import java.util.Scanner; public class Driver { private int colorStrength; private ... would be much appreciated! See Question&Answers more detail:os...

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How to prevent automatic escaping of special characters in Python

I'm writing a Python script that accepts file paths as strings, parses them, appends a command name, and builds ... pythonic way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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