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Better way to sum a property value in an array
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Updated Answer
Due to all the downsides of adding a function to the Array prototype, I am updating this answer to provide an alternative that keeps the syntax similar to the syntax originally requested in the question.
class TravellerCollection e...
Could not locate Gemfile
...application on my server using Ruby, Gems, and Bundler. I am trying to install another Ruby on under a different user account but on the same VPS. When I go to run
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ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...e issue. Thanks.
– Erik B
Jul 14 at 20:59
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Make var_dump look pretty
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I really love var_export(). If you like copy/paste-able code, try:
echo '<pre>' . var_export($data, true) . '</pre>';
Or even something like this for color syntax highlighting:
highlight_string("<?php\n\$data ...
What's the simplest way to test whether a number is a power of 2 in C++?
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so basically (n>0 && ((n & (n-1)) == 0))
– Saurabh Goyal
Jul 10 '16 at 8:06
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Exception messages in English?
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This issue can be partially worked around. The Framework exception code loads the error messages from its resources, based on the current thread locale. In the case of some exceptions, this happens at the time the Message property is accessed.
For...
Generate random password string with requirements in javascript
...getRandomValues() method.
Looking at the can-i-use for getRandomValues in 2020 you probably don't need the msCrypto and Math.random fallback any more, unless you care about ancient browsers.
Maintainable is mostly about the RegExp _pattern as an easy way to define what character classes you allow ...
Named placeholders in string formatting
...the file won't be loaded into memory.
– Edward Corrigall
Sep 20 '19 at 17:44
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What are some uses of decltype(auto)?
...code
For non-generic code, like the initial example you gave, you can manually select to get a reference as a return type:
auto const& Example(int const& i)
{
return i;
}
but in generic code you want to be able to perfectly forward a return type without knowing whether you are dea...
Select mySQL based only on month and year
... in my mySQL DB that has some rows. One of this row is a DATE, like this: 2012-02-01
12 Answers
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