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How to check if an object is an array?
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In modern browsers you can do
Array.isArray(obj)
(Supported by Chrome 5, Firefox 4.0, IE 9, Opera 10.5 and Safari 5)
For backward compatibility you can add the following
# only implement if no native implementation is available
if (typeof Array.isArray === 'undefined') {
Array.isArray = fun...
Double Iteration in List Comprehension
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edited Sep 25 '19 at 17:44
answered Apr 20 '16 at 5:34
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How do I determine if my python shell is executing in 32bit or 64bit?
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edited Mar 9 at 15:45
Jean-François Fabre♦
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Removing duplicate values from a PowerShell array
...ect (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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How to escape single quotes in MySQL
...s deprecated.
– hd1
May 23 '13 at 9:58
That is the right answer, although these days the best option is to use one of ...
What is the size of column of int(11) in mysql in bytes?
...racters to pad when selecting data with the mysql command line client. 12345 stored as int(3) will still show as 12345, but if it was stored as int(10) it would still display as 12345, but you would have the option to pad the first five digits. For example, if you added ZEROFILL it would display as ...
Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods
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Andrzej Doyle
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answered Nov 9 '09 at 14:02
Joachim Saue...
Installing Ruby Gem in Windows
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reducing activity
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answered Sep 20 '13 at 5:10
MirageMirage
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How do I plot in real-time in a while loop using matplotlib?
...nge(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show()
Note some of the changes:
Call plt.pause(0.05) to both draw the new data and it runs the GUI's event loop (allowing for mouse interaction).
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How can I store my users' passwords safely?
How much more safe is this than plain MD5 ? I've just started looking into password security. I'm pretty new to PHP.
6 Ans...