Recent questions tagged closures

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closures - Swift- variable not initialized before use (but it's not used)

Currently I've got some swift code like this: class C { let type: Type; var num = 0; init() { self.type ... not optional and can't be mutated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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closures - swift maximum consecutive positive numbers

How to count maximum consecutive positive numbers using closures? var numbers = [1,3,4,-1,-2,5,2,-2,- ... ))//this counts total positive numbers See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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closures - JavaScript inner-functions and Performance

What is the impact on running-time and memory defining a clousre vs. global-scope function? function a(){ // ... both running time and memory? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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closures - Rewriting an anonymous function in php 7.4

There is the following anonymous recursive function: $f = function($n) use (&$f) { return ($n == 1) ? 1 ... : Function name must be a string See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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285 views

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closures - Python: LOAD_FAST vs. LOAD_DEREF with inplace addition

Last Friday I went to a job interview and had to answer the following question: why does this code raise an ... I'm missing something here. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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502 views

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closures - animateWithDuration:animations:completion: in Swift

In objective-C my animation bit would look something like this: [UIView animateWithDuration:0.5 animations:^ ... takes SwipeableCell objects. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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429 views

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closures - In Python 2, how do I write to variable in the parent scope?

I have the following code inside a function: stored_blocks = {} def replace_blocks(m): block = m.group(0) ... that works with Python 2.x. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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435 views

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closures - Reflect / Inspect closed-over variables in Python

If I have: def f(x): def g(y): return x + y return g f2 = f(2) Is there a way to find the x binding ... .. assert closedVars(f2) == {'x': 2} See Question&Answers more detail:os...