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How to get the last element of an array in Ruby?
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Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
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No increment operator (++) in Ruby? [duplicate]
...s: -x == ---x == -----x == ...... To increment a number, simply write x += 1.
Taken from "Things That Newcomers to Ruby Should Know
" (archive, mirror)
That explains it better than I ever could.
EDIT: and the reason from the language author himself (source):
++ and -- are NOT reserved ope...
Clicking the text to select corresponding radio button
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174
In your code, you've got a label on the form itself. You want to put labels on each individual...
How to remove duplicate values from a multi-dimensional array in PHP
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19 Answers
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Active
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Adding an identity to an existing column
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19 Answers
19
Active
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Convert dmesg timestamp to custom date format
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182
Understanding dmesg timestamp is pretty simple: it is time in seconds since the kernel started...
Python using enumerate inside list comprehension
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167
Try this:
[(i, j) for i, j in enumerate(mylist)]
You need to put i,j inside a tuple for the...
Version of SQLite used in Android?
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UPDATE OCT 2016: Here is a link to the updated official docs which includes the main points in this answer: android.database.sqlite package-level javadoc
Using the emulators:
adb shell sqlite3 --version
UPDATE: Since SDK 29 (emulator ...
jquery live hover
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jQuery 1.4.1 now supports "hover" for live() events, but only with one event handler function:
$("table tr").live("hover",
function () {
});
Alternatively, you can provide two functions, one for mouseenter and one for mouseleav...