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How to insert an item into an array at a specific index (JavaScript)?
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4974
What you want is the splice function on the native array object.
arr.splice(index, 0, item);...
sort object properties and JSON.stringify
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74
The simpler, modern and currently browser supported approach is simply this:
JSON.stringify(sor...
How to run multiple shells on Emacs
... shell (rather than eshell), this trick doesn't seem to work (in my Emacs 24.0.50.1 at least.)
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How to find time complexity of an algorithm
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405
How to find time complexity of an algorithm
You add up how many machine instructions it w...
What are the Ruby Gotchas a newbie should be warned about? [closed]
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edited May 7 '12 at 15:54
community wiki
4 re...
Is there a difference between using a dict literal and a dict constructor?
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answered Jul 7 '11 at 12:43
John La RooyJohn La Rooy
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
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146
You can use the logical 'OR' operator in place of the Elvis operator:
For example displayname ...
max value of integer
...o +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
11 Answers
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Python speed testing - Time Difference - milliseconds
...atetime.now()
>>> c = b - a
>>> c
datetime.timedelta(0, 4, 316543)
>>> c.days
0
>>> c.seconds
4
>>> c.microseconds
316543
Be aware that c.microseconds only returns the microseconds portion of the timedelta! For timing purposes always use c.total_second...
What's the @ in front of a string in C#?
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edited May 14 '18 at 22:29
answered Feb 17 '09 at 9:57
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