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ios - Modal Dialog Does Not Dismiss Keyboard

I am running into an issue where the keyboard does not get dismissed when leaving a ... resignFirstResponder]; [synopsisTextView resignFirstResponder]; } Question&Answers:os...

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

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313 views

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javascript - How does setInterval and setTimeout work?

I was in an awkward situation, I am working with pure JavaScript for almost 3 years, and I know ... lot of setInterval or setTimeout calls affect performance? Question&Answers:os...

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

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283 views

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PHP - Convert multidimensional array to 2D array with dot notation keys

There are plenty of tips and code examples out there of accessing PHP arrays with dot notation, but I would like to ... ', 'key4.subkey5' => 'subkeyval5' ); Question&Answers:os...

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

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ios - How do I correctly use "openParentApplication" and "handleWatchKitExtensionRequest" so that "reply()" is called?

Situation: I use openParentApplication in the Watch app to call handleWatchKitExtensionRequest in the main app. This works nicely in ... ... reply( data ); } } Question&Answers:os...

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

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121 views

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c# - Why there are 5 Versions of Timer Classes in .NET?

Why are there five timer classes in the .Net framework, namely the following: System.Timers.Timer System. ... And what are the differences between them? Question&Answers:os...

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

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syntax - Testing for nil in Objective-C -- if(x != nil) vs if(x)

Most of the examples I found on the net write this: if(x != nil) // ... Is there any problems with ... in a simple program and couldn't found any difference. Question&Answers:os...

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

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Restart python-script from within itself

I have a python-based GTK application that loads several modules. It is run from the (linux) terminal like so: ./ ... and Mac as well but it is not essential. Question&Answers:os...

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

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c++ - GCC style weak linking in Visual Studio?

GCC has the ability to make a symbol link weakly via __attribute__((weak)). I want to use the a weak ... studio. Does Visual Studio offer a similar feature? Question&Answers:os...

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

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c++ - How to catch the null pointer exception?

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

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c# - what is relation between GC, Finalize() and Dispose?

GC is for managed objects and Finalize is for unmanaged objects thats what I have been reading. Dispose is ... thing have been used for different reasons? Question&Answers:os...

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

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security - What algorithm should I use to hash passwords into my database?

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

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184 views

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android - Register Application class in Manifest?

I have one Application class to keep the global state of my application. But I'm unable to register it in Manifest file? Any idea how to do this? Question&Answers:os...

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

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java - Where can I see the source code of the Sun JDK?

I want to have a look at how Java implements LinkedList. Where should I go to look at the source code? Question&Answers:os...

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

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310 views

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python - Iterating through two lists in Django templates

I want to do the below list iteration in django templates: foo = ['foo', 'bar']; moo = ['moo', 'loo'] ... words: %s" % token.contents How do I accomplish this? Question&Answers:os...

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

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C++ function pointer (class member) to non-static member function

class Foo { public: Foo() { do_something = &Foo::func_x; } int (Foo::*do_something)(int); // function pointer to ... error. } How can I get this to work? Question&Answers:os...

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

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288 views

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javascript - Border Radius for IE8

I have a problem with border radius on IE8, till now I used pie.js but I don't recommend this js library because ... -radius on IE 8 I'll be grateful for life. Question&Answers:os...

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

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261 views

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jQuery AJAX calls in for loop

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

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413 views

1 answer

python - OperationalError: database is locked

I have made some repetitive operations in my application (testing it), and suddenly I'm getting a weird error: ... error persists. What can it be all about? Question&Answers:os...

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

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318 views

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Why does string interpolation work in Ruby when there are no curly braces?

The proper way to use string interpolation in Ruby is as follows: name = "Ned Stark" puts "Hello there, #{ ... this work? What is the interpreter doing here? Question&Answers:os...

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

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304 views

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Javascript: Call a function after specific time period

In JavaScript, How can I call a function after a specific time interval? Here is my function I want to run: function FetchData() { } Question&Answers:os...

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

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521 views

1 answer

javascript - Conversion between UTF-8 ArrayBuffer and String

I have an ArrayBuffer which contains a string encoded using UTF-8 and I can't find a standard way of converting ... a String to a UTF-8 encoded ArrayBuffer. Question&Answers:os...

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

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1.9k views

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vb.net - Count specific character occurrences in a string

What is the simplest way to count the number of occurrences of a specific character in a string? That is, I ... (str,"t") ' Count should equal 3 Question&Answers:os...

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

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201 views

1 answer

Can I declare variables inside an Objective-C switch statement?

I think I'm going blind, because I can't figure out where the syntax error is in this code: if( cell == ... for such a basic question, but what am I missing? Question&Answers:os...

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

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140 views

1 answer

java - What is better: multiple "if" statements or one "if" with multiple conditions?

For my work I have to develop a small Java application that parses very large XML files (~300k lines) ... regular expression for matches Thanks for your help. Question&Answers:os...

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

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299 views

1 answer

javascript - Use jQuery to scroll to the bottom of a div with lots of text

I have a div with a scrollbar on the right when there is a lot of text in it. I tried to use this code ... objDiv[0].scrollTop = objDiv[0].scrollHeight; } }); Question&Answers:os...

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

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698 views

1 answer

bash - Is there an easy way to pass a "raw" string to grep?

grep can't be fed "raw" strings when used from the command-line, since some characters need to be escaped to not ... can I achieve this in pure bash, if not? Question&Answers:os...

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

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312 views

1 answer

C++ Virtual template method

I have an abstract class (I know that it will not compile this way, but it's for comprehension of what I want to do) ... data) but I don't know how to do it. Question&Answers:os...

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

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248 views

1 answer

c# - Is it possible to implement smooth scroll in a WPF listview?

Is it possible to implement smooth scroll in a WPF listview like how it works in Firefox? When the Firefox browser ... am wondering if it is available in WPF? Question&Answers:os...

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

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