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Express-js wildcard routing to cover everything under and including a path
...wser (or curl):
const app = require('express')()
// will be able to match all of the following
const test1 = 'http://localhost:3000/hello/world'
const test2 = 'http://localhost:3000/hello/world/'
const test3 = 'http://localhost:3000/hello/world/with/more/stuff'
// but fail at this one
const failTe...
Ruby regular expression using variable name
...aracters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work:
var = "Value|a|test"
str = "a test Value"
str.gsub( /#{var}/, 'foo' ) # => "foo foo foo"
However, if your search string contains metacharacters and you do n...
git ignore exception
...have a gitignore file that makes git ignore *.dll files, and that is actually the behavior I want. However, if I want an exception ( i.e. to be able to commit foo.dll ), how can I achieve this?
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General guidelines to avoid memory leaks in C++ [closed]
... programs? How do I figure out who should free memory that has been dynamically allocated?
29 Answers
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What's a reliable way to make an iOS app crash?
...er performs a particular action that a real user is unlikely to do accidentally.
18 Answers
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...ON DUPLICATE KEY UPDATE.
If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. But the statement won't generate an error. It generates a warning instead. These cases include:
Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constrain...
When NOT to use yield (return) [duplicate]
...is h deep. Then there will at most points be O(h) nested iterators built. Calling "MoveNext" on the outer iterator will then make O(h) nested calls to MoveNext. Since it does this O(n) times for a tree with n items, that makes the algorithm O(hn). And since the height of a binary tree is lg n <=...
How to create a custom string representation for a class object?
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@RobertSiemer Why? While his answer is not specifically targeting the OP's question, it's still helpful. It helped me. And at a glance, I don't see any question asking for instance implementation. So probably people land on this page first.
– akinuri
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How does the main() method work in C?
...d nothing bad happens with their given compiler.
This is the case if the calling conventions are such that:
The calling function cleans up the arguments.
The leftmost arguments are closer to the top of the stack, or to the base of the stack frame, so that spurious arguments do not invalidate the ...
Uniq by object attribute in Ruby
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Do it on the database level:
YourModel.find(:all, :group => "status")
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