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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
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133
utf8_general_ci is a very simple — and on Unicode, very broken — collation, one that gives ...
Returning value from called function in a shell script
...ho "directory not created"
else
echo "directory already created"
fi
3. Share variable
lockdir="somedir"
retval=-1
testlock(){
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
r...
postgresql - sql - count of `true` values
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133
SELECT COALESCE(sum(CASE WHEN myCol THEN 1 ELSE 0 END),0) FROM <table name>
or, as you ...
Why are dashes preferred for CSS selectors / HTML attributes?
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135
Code completion
Whether dash is interpreted as punctuation or as an opaque identifier depends ...
best way to get the key of a key/value javascript object
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93
If you want to get all keys, ECMAScript 5 introduced Object.keys. This is only supported by newe...
What does the @ symbol before a variable name mean in C#? [duplicate]
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30
With what is it any different than, say, an underscore?
– Vilx-
Jan 9 '09 at 20:15
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typeof for RegExp
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edited Nov 27 '18 at 6:34
Alexis Wilke
14.2k77 gold badges5151 silver badges9898 bronze badges
answer...
if checkbox is checked, do this
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235
I would use .change() and this.checked:
$('#checkbox').change(function(){
var c = this.che...
Removing duplicate values from a PowerShell array
...-Object (whose alias is select) with the -Unique switch; e.g.:
$a = @(1,2,3,4,5,5,6,7,8,9,0,0)
$a = $a | select -Unique
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