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How to avoid Dependency Injection constructor madness?
... case you can write null object implementations to stop the recursion. Not what you need, but the point is that Constructor Injection doesn't prevent cycles - it only makes it clear that they're there.
– Mark Seemann
May 2 '17 at 20:25
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How to assign the output of a command to a Makefile variable
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Use the Make shell builtin like in MY_VAR=$(shell echo whatever)
me@Zack:~$make
MY_VAR IS whatever
me@Zack:~$ cat Makefile
MY_VAR := $(shell echo whatever)
all:
@echo MY_VAR IS $(MY_VAR)
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What does the question mark operator mean in Ruby?
What is the purpose of the question mark operator in Ruby?
9 Answers
9
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Is it pythonic to import inside functions?
... file, that way you can tell at a glance how complicated your module is by what it needs to import.
If I'm adding new code to an existing file I'll usually do the import where it's needed and then if the code stays I'll make things more permanent by moving the import line to the top of the file.
O...
Git push rejected after feature branch rebase
OK, I thought this was a simple git scenario, what am I missing?
12 Answers
12
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Python list of dictionaries search
...: 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different API:
next((item for item in dicts if item["name"] == "Pam"), None)
And to find the index of the item, rather than the item itself, yo...
Is there any kind of hash code function in JavaScript?
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What's the point of hashing the objects if every time you refer to them you need a linear scan of an array?
– Bordaigorl
Nov 16 '14 at 11:36
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What are Maven goals and phases and what is their difference?
What is the difference/relation between Maven goals and phases? How they are related to each other?
8 Answers
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What is meaning of boolean value returned from an event-handling method in Android
In android, most event listener methods return a boolean value. What is that true/false value mean ? what will it result in to the subsequence events ?
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How many threads can a Java VM support?
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This depends on the CPU you're using, on the OS, on what other processes are doing, on what Java release you're using, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, of cours...