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How to return an empty ActiveRecord relation?
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edited Nov 9 '16 at 2:25
Patrick Brinich-Langlois
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How to check if AlarmManager already has an alarm set?
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325
Following up on the comment ron posted, here is the detailed solution. Let's say you have regi...
Auto-center map with multiple markers in Google Maps API v3
...arker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map
});
//extend the bounds to include each marker's position
bounds.extend(marker.position);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowin...
How to implement “select all” check box in HTML?
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29 Answers
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How to define hash tables in Bash?
...ray_$index=$value"
# Get a value:
arrayGet() {
local array=$1 index=$2
local i="${array}_$index"
printf '%s' "${!i}"
}
Let's use it:
$ sound=moo
$ animal=cow
$ declare "animals_$sound=$animal"
$ arrayGet animals "$sound"
cow
Note: declare cannot be put in a function. Any use of d...
Convert data.frame column to a vector?
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211
I'm going to attempt to explain this without making any mistakes, but I'm betting this will at...
USB Debugging option greyed out
I have an LG-E405 phone running Android 2.3.6.
15 Answers
15
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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
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Is a `=default` move constructor equivalent to a member-wise move constructor?
...o follow some rules when you declare explicitly-defaulted-functions :
8.4.2 Explicitly-defaulted functions [dcl.fct.def.default]
A function definition of the form:
attribute-specifier-seqopt decl-specifier-seqopt declarator virt-specifier-seqopt = default ;
is called an explicitly-defaulted d...