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How to create streams from string in Node.Js?

...g"]) readable.on("data", (chunk) => { console.log(chunk) // will be called once with `"input string"` }) Note that at least between 10.17 and 12.3, a string is itself a iterable, so Readable.from("input string") will work, but emit one event per character. Readable.from(["input string"]) wil...
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How do I declare class-level properties in Objective-C?

...mething that's equivalent to a static variable? E.g. only one instance for all types of Foo? To declare class functions in Objective-C you use the + prefix instead of - so your implementation would look something like: // Foo.h @interface Foo { } + (NSDictionary *)dictionary; // Foo.m + (NSDicti...
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Assign a variable inside a Block to a variable outside a Block

... You need to use this line of code to resolve your problem: __block Person *aPerson = nil; For more details, please refer to this tutorial: Blocks and Variables share | improve this...
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How do I auto size a UIScrollView to fit its content

...careful when Scroll Indicators are enabled! a UIImageView will be automatically created for each one by the SDK. you must account for it or else your content size will be wrong. ( see stackoverflow.com/questions/5388703/… ) – AmitP Oct 26 '14 at 15:58 ...
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(Mac) -bash: __git_ps1: command not found

...r - in git's development history this is after a commit that split out the __git_ps1 function from the completion functionality into a new file (git-prompt.sh). The commit that introduced this change, which explains the rationale, is af31a456. I would still suggest that you just source the version...
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Can I redirect the stdout in python into some sort of string buffer?

...ngIO import StringIO # Python3 use: from io import StringIO import sys old_stdout = sys.stdout sys.stdout = mystdout = StringIO() # blah blah lots of code ... sys.stdout = old_stdout # examine mystdout.getvalue() share ...
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“Bitmap too large to be uploaded into a texture”

... All rendering is based on OpenGL, so no you can't go over this limit (GL_MAX_TEXTURE_SIZE depends on the device, but the minimum is 2048x2048, so any image lower than 2048x2048 will fit). With such big images, if you want to...
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Safely override C++ virtual functions

...ake the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures that I didn't accidentally declare a new function, instead of overriding the old one. ...
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What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?

... Thnx!<br> for future reference, the definition is actually +[NSThread sleepForTimeInterval:] (so, used like [NSThread sleepForTimeInterval:0.1]). – TinkerTank Dec 7 '10 at 18:00 ...
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How can we match a^n b^n with Java regex?

...tion (?=…). Here is our pattern with a simple test harness: function testAll($r, $tests) { foreach ($tests as $test) { $isMatch = preg_match($r, $test, $groups); $groupsJoined = join('|', $groups); print("$test $isMatch $groupsJoined\n"); } } $tests = array('aaa', 'aaab',...