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I am trying to figure out if there is a way to implement an autocomplete functionality in a UITextField for specific ... . How 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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python - Sorting a pandas series

I am trying to figure out how to sort the Series generated as a result of a groupby aggregation in a smart way ... can I get this sort working? See Question&Answers more detail:os...

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

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c++ - What are use cases for structured bindings?

C++17 standard introduces a new structured bindings feature, which was initially proposed in 2015 and whose ... a discussion about variadicity. See Question&Answers more detail:os...

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

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datetime - Does Java 8's new Java Date Time API take care of DST?

I am thinking of using the new java 8 Date Time API. I googled a bit and found jodaTime as good choice for ... on the basis of Users TimeZone. See Question&Answers more detail:os...

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

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What could C/C++ "lose" if they defined a standard ABI?

The title says everything. I am talking about C/C++ specifically, because both consider this as "implementation ... defined a standard ABI? See Question&Answers more detail:os...

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

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string formatting - Right padding with zeros in Java

Sorry if this question was made already, I've made a deep search and nothing. Now, I know that: String ... using only String.format patterns? See Question&Answers more detail:os...

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

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python - Generate a random sample of points distributed on the surface of a unit sphere

I am trying to generate random points on the surface of the sphere using numpy. I have reviewed the post ... be much appreciated. Thanks, Parin See Question&Answers more detail:os...

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

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r - Crop for SpatialPolygonsDataFrame

I have two SpatialPolygonsDataFrame files: dat1, dat2 extent(dat1) class : Extent xmin : -180 xmax ... for signature"SpatialPolygonsDataFrame"' See Question&Answers more detail:os...

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

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wpf flat button

How to make a button flat style in wpf? I've tried BasedOn property but it does not work. See Question&Answers more detail:os...

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

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How do I print unique elements in Perl array?

I'm pushing elements into an array during a while statement. Each element is a teacher's name. There ends up being duplicate ... ].'"'; $i++; } See Question&Answers more detail:os...

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

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c# - .NET Core and System.Drawing

I am trying to reference System.Drawing in a .net core console app targeting net46 but the assembly is not ... Any idea what is the problem See Question&Answers more detail:os...

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

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java - How to collect and inject all beans of a given type in Spring XML configuration

One of the strongest accents of the Spring framework is the Dependency Injection concept. I understand one of the ... </property> </bean> See Question&Answers more detail:os...

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

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debugging - How to programmatically detect debug mode in nodejs?

I've seen this question asked of other platform/languages - any ideas? I'd like to do something like: if ( ... Is this the best/right way? See Question&Answers more detail:os...

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

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Android: two Spinner onItemSelected()

I have two spinners (day_spin and time_spin) in one Activity. I want to save the selected day_spin value into a ... I hope you can help me! See Question&Answers more detail:os...

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

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Serialize Java 8 LocalDate as yyyy-mm-dd with Gson

I am using Java 8 and the latest RELEASE version (via Maven) of Gson. If I serialize a LocalDate I get ... not seem to make a difference.) See Question&Answers more detail:os...

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

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c# - Converting a WebClient method to async / await

I have some existing code which I am porting to Windows 8 WinRT. The code fetches data from URL, asynchronously ... much more of my code? See Question&Answers more detail:os...

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

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language features - C# method call with parameter name and colon

I've begun to notice at times when I'm making method calls in C# that the names of the parameters for the method ... what is it to be used for. See Question&Answers more detail:os...

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

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asp.net mvc - How can I create a route constraint of type System.Guid?

Can anyone point me in the right direction on how to map a route which requires two guids? ie. http://blah.com ... must be of type system.Guid? See Question&Answers more detail:os...

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

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debugging - How do I debug a stand-alone VBScript script?

I have a VBScript script that takes 2 command-line arguments and does some validation. I need to debug ... applications on the office computer. See Question&Answers more detail:os...

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

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android - How to build app compliant with Google Play 64-bit requirement?

After I upload the APK to play store I got the following warning. What changes should I make to release ... requirement? The warning message: See Question&Answers more detail:os...

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

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c# - LINQ performance Count vs Where and Count

public class Group { public string Name { get; set; } } Test: List<Group> _groups = new List<Group>(); ... Method is always faster than Method. See Question&Answers more detail:os...

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

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javascript - Node.js - wait for multiple async calls

I'm trying to make multiple MongoDB queries before I render a Jade template, but I can't quite figure out how to ... , NJlakes: NJLakes }); }; See Question&Answers more detail:os...

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

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Getting String Value from Json Object Android

I am beginner in Android. In my Project, I am getting the Following json from the HTTP Response. [{"Date":"2012- ... above json. How to get it? See Question&Answers more detail:os...

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

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php - Any way to keep curl's cookies in memory and not on disk

I'm doing some cURL work in php 5.3.0. I'm wondering if there is any way to tell the curl handle/object ... Or is this just the way things are? See Question&Answers more detail:os...

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

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c# - Using async without await?

Consider Using async without await. think that maybe you misunderstand what async does. The warning is exactly right: ... without await in C#? See Question&Answers more detail:os...

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

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Format numbers to significant figures nicely in R

I want to format numbers in my reports to significant digits, but keep trailing significant zeroes and correctly format ... there a better way ? See Question&Answers more detail:os...

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

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excel - Extract the last substring from a cell

I have names in a column. I need to split just the last names from that column into another column. The last ... > David Mckenzie B3 -> Mckenzie See Question&Answers more detail:os...

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

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c++ - Do STL iterators guarantee validity after collection was changed?

Let's say I have some kind of collection and I obtained an iterator for the beginning of it. Now let's ... valid according to STL standard?! See Question&Answers more detail:os...

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

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