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What are good uses for Python3's “Function Annotations”
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I think this is actually great.
Coming from an academic background, I can tell you that annotations have proved themselves invaluable for enabling smart static analyzers for languages like Java. For instance, you could define semantics like state re...
Disable assertions in Python
...ble assertions in Python?
There are multiple approaches that affect a single process, the environment, or a single line of code.
I demonstrate each.
For the whole process
Using the -O flag (capital O) disables all assert statements in a process.
For example:
$ python -Oc "assert False"
$ pyt...
Which is better, return value or out parameter?
If we want to get a value from a method, we can use either return value, like this:
17 Answers
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Java multiline string
Coming from Perl, I sure am missing the "here-document" means of creating a multi-line string in source code:
42 Answers
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How do I escape the wildcard/asterisk character in bash?
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Quoting when setting $FOO is not enough. You need to quote the variable reference as well:
me$ FOO="BAR * BAR"
me$ echo "$FOO"
BAR * BAR
share
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Simplest/Cleanest way to implement singleton in JavaScript?
What is the simplest/cleanest way to implement singleton pattern in JavaScript?
37 Answers
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lock(new object()) — Cargo cult or some crazy “language special case”?
I'm reviewing some code written by a consultant, and while dozens of red flags have already popped up, I can't wrap my head around the following snippet:
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What's an Aggregate Root?
I'm trying to get my head around how to properly use the repository pattern. The central concept of an Aggregate Root keeps coming up. When searching both the web and Stack Overflow for help with what an aggregate root is, I keep finding discussions about them and dead links to pages that are suppos...
How do I strip non alphanumeric characters from a string and keep spaces?
I want to create a regex that removes all non-alphanumber characters but keeps spaces. This is to clean search input before it hits the db. Here's what I have so far:
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SparseArray vs HashMap
I can think of several reasons why HashMap s with integer keys are much better than SparseArray s:
7 Answers
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