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Why does `a == b or c or d` always evaluate to True?
...r is more literal minded.
if name == "Kevin" or "Jon" or "Inbar":
is logically equivalent to:
if (name == "Kevin") or ("Jon") or ("Inbar"):
Which, for user Bob, is equivalent to:
if (False) or ("Jon") or ("Inbar"):
The or operator chooses the first argument with a positive truth value:
if ("Jon")...
Prevent users from submitting a form by hitting Enter
... How can so many people have answered with variations of keypress, keydown etc but missed this standards based answer?
– John Rees
Jul 27 '18 at 10:27
4
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git: Switch branch and ignore any changes without committing
... working branchY) then git checkout branchX do something git add/commit -m etc. git checkout branchY and git stash pop to get back the stash
– Highmastdon
Nov 9 '12 at 9:36
2
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In Bash, how can I check if a string begins with some value?
...sting function calls with strings is not possible, pipes are not possible, etc.)
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Difference between acceptance test and functional test?
...qualities you've designed or build (functions, speed, errors, consistency, etc.)
Acceptance testing - test the product in its context, this requires (simulation of) human interaction, test it has the desired effect on the original problem(s).
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Performance of foreach, array_map with lambda and array_map with static function
...
}
return $result;
}
function useMapClosure($numbers) {
return array_map(function($number) {
return $number * 10;
}, $numbers);
}
function _tenTimes($number) {
return $number * 10;
}
function useMapNamed($numbers) {
return array_map('_tenTimes', $numbers);
}
foreach (array('F...
How to include *.so library in Android Studio?
....srcDirs = ['libs']
}
// Move the tests to tests/java, tests/res, etc...
instrumentTest.setRoot('tests')
// Move the build types to build-types/<type>
// For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
// This moves them out of them de...
Differences in string compare methods in C#
...0
Human-readable match (All other cultures, insensitive case/accent/kana/etc defined by CultureInfo):
string.Compare(strA, strB, myCultureInfo) == 0
Human-readable match with custom rules (All other cultures):
CompareOptions compareOptions = CompareOptions.IgnoreCase
...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...quests at a time as long as our system has enough resources (RAM, Network, etc.). How those functions run is THE KEY DIFFERENCE.
-- Hmm, should I be excited now?
-- Maybe :) Node runs a loop over a queue. In this queue are our jobs, i.e, the calls we started to process incoming requests. The most ...
Python csv string to array
...cerning BOM: Python should detect and skip official BOMs in UTF-32, UTF-16 etc. To skip the unofficial Microsoft BOM for UTF-8, use 'utf-8-sig' as codec instead of 'utf-8'.
– roskakori
Dec 7 '14 at 7:00
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