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Ruby replace string with captured regex pattern
...ijwani Good comment, but also note that when using Ruby inline (on the command line with -e), it is more likely to see double quotes: printf "Punkinhead the name" | ruby -ne 'puts gsub /.*(the name)/, "Jonathans \\1"' because expression provided to -e is usually wrapped in single quotes.
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Sorting Python list based on the length of the string
... such that cmp(x, y) returns -1 if x is less than y, 0 if x is equal to y, and 1 if x is greater than y.
Of course, you can instead use the key parameter:
xs.sort(key=lambda s: len(s))
This tells the sort method to order based on whatever the key function returns.
EDIT: Thanks to balpha and Ruslan ...
Tell Ruby Program to Wait some amount of time
... Not sure about the downvotes on this, but it could be that minutes() and hours() are methods on numerics added by Ruby on Rails - so not standard available in Ruby - in the ActiveSupport::Duration class. They're quite convenient though.
– Jochem Schulenklopper
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How to check if element in groovy array/hash/collection/list?
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And, in addition, to check if a map contains some not null value under a certain key, it is enough to check the following expression if(aMap["aKey"]==aValue).
– Naeel Maqsudov
Dec 18 '17...
why does DateTime.ToString(“dd/MM/yyyy”) give me dd-MM-yyyy?
... postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
var.replace is not a function
...toString() but getting error: cannot read property "toString" is undefined and same for "replace"
– Hitesh Kumar
Jul 13 at 14:28
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C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
... way we lay these things out. For example, on some systems we might align and pack differently. For this to happen, you need to specify tdAutoLayout for the layout mask of your ValueType or Class. If you specify tdExplicitLayout or tdSequentialLayout, the CLR’s freedom to optimize your layo...
How to create a loop in bash that is waiting for a webserver to respond?
...Apr 18 '14 at 15:43
Serge Stroobandt
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answered Jan 17 '14 at 15:22
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Make error: missing separator
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Just for grins, and in case somebody else runs into a similar error:
I got the infamous "missing separator" error because I had invoked a rule defining a function as
($eval $(call function,args))
rather than
$(eval $(call function,args...
Split a python list into other “sublists” i.e smaller lists [duplicate]
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If you have a list and want a list, there's no reason to bother with itertools. They only make sense if you want to split up a stream of data without ever creating the entire thing.
– alexis
Mar 12 '12 at ...