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sql server - Split function equivalent in T-SQL?

I'm looking to split '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15...' (comma delimited) into a table or ... Does anyone have a function that returns each one in a row? Question&Answers:os...

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NoSuchElementException, Selenium unable to locate element

i would like to find my TextField in selenium, but i dont know how (i use sellenium for the first time). ... me, i would appreciate explanation. this is html: Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - What is the difference between call and apply?

What is the difference between using call and apply to invoke a function? var func = function() { alert('hello!' ... best to use call over apply and vice versa? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to Sort a List<T> by a property in the object

I have a class called Order which has properties such as OrderId, OrderDate, Quantity, and Total. I have a list of this ... order id. How can i do this in C#? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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matrix - R memory management / cannot allocate vector of size n Mb

I am running into issues trying to use large objects in R. For example: > memory.limit(4000) > a = ... [1] stats graphics grDevices utils datasets methods base Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Unable to install pygame on Python via pip (Windows 10)

Currently unable to install Pygame via pip: pip install pygame Getting this message: Concerned by it being termed an ... is this an error in the module itself? Question&Answers:os...

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listview - How to stop EditText from gaining focus at Activity startup in Android

I have an Activity in Android, with two elements: EditText ListView When my Activity starts, the EditText ... not select itself when the Activity starts? Question&Answers:os...

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javascript - Updating address bar with new URL without hash or reloading the page

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What's the difference between "STL" and "C++ Standard Library"?

Someone brought this article to my attention that claims (I'm paraphrasing) the STL term is misused to refer to ... term STL? Or is this an isolated opinion? Question&Answers:os...

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javascript - Cross-Origin Request Headers(CORS) with PHP headers

I have a simple PHP script that I am attempting a cross-domain CORS request: <?php header("Access-Control ... Access-Control-Allow-Headers Anything I'm missing? Question&Answers:os...

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How do I get a Cron like scheduler in Python?

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python - How to plot in multiple subplots

I am a little confused about how this code works: fig, axes = plt.subplots(nrows=2, ncols=2) plt.show() How ... figure() axes = fig.subplots(nrows=2, ncols=2) Question&Answers:os...

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ios - What's the difference between the atomic and nonatomic attributes?

What do atomic and nonatomic mean in property declarations? @property(nonatomic, retain) UITextField *userName ... operational difference between these three? Question&Answers:os...

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javascript - When should I use curly braces for ES6 import?

It seems to be obvious, but I found myself a bit confused about when to use curly braces for importing ... have seen single import with curly braces required). Question&Answers:os...

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What is Double Brace initialization in Java?

What is Double Brace initialization syntax ({{ ... }}) in Java? Question&Answers:os...

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casting - Explanation of ClassCastException in Java

I read some articles written on "ClassCastException", but I couldn't get a good idea on what it means. What is a ClassCastException? Question&Answers:os...

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Easiest way to convert int to string in C++

What is the easiest way to convert from int to equivalent string in C++. I am aware of two methods. Is there any easier ... ; ss << a; string str = ss.str(); Question&Answers:os...

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java.util.scanner - How can I read input from the console using the Scanner class in Java?

How could I read input from the console using the Scanner class? Something like this: System.out.println("Enter ... and assign the input to a String variable. Question&Answers:os...

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objective c - How dangerous is it to compare floating point values?

I know UIKit uses CGFloat because of the resolution independent coordinate system. But every time I want to check if ... zero does not compare to 0 as true? Question&Answers:os...

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How do I load an HTTP URL with App Transport Security enabled in iOS 9?

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sql - Select rows which are not present in other table

I've got two postgresql tables: table name column names ----------- ------------------------ ... to make it work) is the best performing query for this purpose. Question&Answers:os...

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php - How to squeeze error message out of PDO?

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How to stop tracking and ignore changes to a file in Git?

I have cloned a project that includes some .csproj files. I don't need/like my local csproj files being ... a correct/canonical way to handle this situation? Question&Answers:os...

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php - Invalid argument supplied for foreach()

It often happens to me to handle data that can be either an array or a null variable and to feed some foreach ... the foreach with an if Other (please suggest) Question&Answers:os...

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android - The application may be doing too much work on its main thread

I am new to Android SDK/API environment. It's the first I am trying to draw a plot/chart. I tried ... pertaining to an evaluation copy of a licensed library. Question&Answers:os...

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android - Capture Image from Camera and Display in Activity

I want to write a module where on a click of a button the camera opens and I can click and capture an ... return back and display that image in the activity. Question&Answers:os...

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Why don't Java Generics support primitive types?

Why do generics in Java work with classes but not with primitive types? For example, this works fine: List<Integer> ... List<int> bar = new ArrayList<int>(); Question&Answers:os...

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javascript - What is the temporal dead zone?

I've heard that accessing let and const values before they are initialized can cause a ReferenceError because of ... and in what situations is it encountered? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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