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List comprehension rebinds names even after scope of comprehension. Is this right?
...change in Python
3, to improve equivalence between list
comprehensions and generator
expressions. In Python 2, the list
comprehension "leaks" the loop control
variable into the surrounding scope:
x = 'before'
a = [x for x in 1, 2, 3]
print x # this prints '3', not 'before'
This was ...
Jasmine.js comparing arrays
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Just did the test and it works with toEqual
please find my test:
http://jsfiddle.net/7q9N7/3/
describe('toEqual', function() {
it('passes if arrays are equal', function() {
var arr = [1, 2, 3];
expect(arr).toEqual([1, 2,...
How to create a GUID/UUID using iOS
I want to be able to create a GUID/UUID on the iPhone and iPad.
8 Answers
8
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How to get start and end of day in Javascript?
How to get start ( 00:00:00 ) and end ( 23:59:59 ) of today in timestamp ( GMT )? Computer use a local time.
7 Answers
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What is the difference between a shim and a polyfill?
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A shim is any piece of code that performs interception of an API call and provides a layer of abstraction. It isn't necessarily restricted to a web application or HTML5/CSS3.
A polyfill is a type of shim that retrofits legacy browsers with modern HTML5/CSS3 features usually using Javascript or ...
Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
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Usage of forceLayout(), requestLayout() and invalidate()
I'm a bit confused about the roles of forceLayout() , requestLayout() and invalidate() methods of the View class.
6 ...
How to convert an enum type variable to a string?
...of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
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Cannot ping AWS EC2 instance
...cho Request", I got confused by this for a moment.
– Andy
Jul 10 '18 at 15:23
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What characters are forbidden in Windows and Linux directory names?
I know that / is illegal in Linux, and the following are illegal in Windows
(I think) * . " / \ [ ] : ; | ,
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