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Find intersection of two nested lists?

... 3 filter returns an iterable instead of list, so you need to wrap filter calls with list(): c3 = [list(filter(lambda x: x in c1, sublist)) for sublist in c2] Explanation: The filter part takes each sublist's item and checks to see if it is in the source list c1. The list comprehension is exec...
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What is __declspec and when do I need to use it?

... DanielV 1,16722 gold badges2323 silver badges4646 bronze badges answered May 20 '11 at 6:22 HackNoneHackNone ...
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get and set in TypeScript

... })(); So to use it, var myFoo = new foo(); if(myFoo.bar) { // calls the getter myFoo.bar = false; // calls the setter and passes false } However, in order to use it at all, you must make sure the TypeScript compiler targets ECMAScript5. If you are running the command line compile...
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Curly braces in string in PHP

...nterpolation. From the manual: Complex (curly) syntax This isn't called complex because the syntax is complex, but because it allows for the use of complex expressions. Any scalar variable, array element or object property with a string representation can be included via this synta...
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What's the meaning of exception code “EXC_I386_GPFLT”?

...hich is the x86's way to tell you that "you did something that you are not allowed to do". It typically DOESN'T mean that you access out of memory bounds, but it could be that your code is going out of bounds and causing bad code/data to be used in a way that makes for an protection violation of som...
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Function return value in PowerShell

... PowerShell has really wacky return semantics - at least when viewed from a more traditional programming perspective. There are two main ideas to wrap your head around: All output is captured, and returned The return keyword really just indi...
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How can you encode a string to Base64 in JavaScript?

... in 8 bits, it will probably break. This isn’t a problem if you’re actually treating the string as a byte array, but if you’re trying to do something else then you’ll have to encode it first. atob() returns a “string” where each character represents an 8-bit byte – that is, its value w...
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How to change field name in Django REST Framework

...get_alternate_name(self, obj): return obj.alternate_name Additionally, you can use serializers.CharField with source attribute: class ParkSerializer(serializers.ModelSerializer): location = serializers.CharField(source='other_fields') class Meta: model = Park fiel...
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Understanding typedefs for function pointers in C

...es' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs for pointers t...
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Convert hex string to int in Python

... 16) With the 0x prefix, Python can distinguish hex and decimal automatically. >>> print int("0xdeadbeef", 0) 3735928559 >>> print int("10", 0) 10 (You must specify 0 as the base in order to invoke this prefix-guessing behavior; omitting the second parameter means to assume ba...