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Automatic exit from bash shell script on error [duplicate]
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edited May 16 '19 at 13:09
Louis
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answered May ...
How can I find out if I have Xcode commandline tools installed?
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Danh
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answered Nov 4 '16 at 5:45
crujzocrujzo
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What is the difference between instanceof and Class.isAssignableFrom(…)?
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506
When using instanceof, you need to know the class of B at compile time. When using isAssignabl...
Convert python datetime to epoch with strftime
... since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp() instead:
>>> datetime.datetime(2012,4,1,0,0).timestamp()
1333234800.0
Why you should not use da...
powershell 2.0 try catch how to access the exception
This is the try catch in PowerShell 2.0
1 Answer
1
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How to delete an old/unused Data Model Version in Xcode
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answered Nov 12 '11 at 20:59
David AvendasoraDavid Avendasora
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...
Getting the exception value in Python
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340
use str
try:
some_method()
except Exception as e:
s = str(e)
Also, most exception cla...
How do you round to 1 decimal place in Javascript?
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Math.round(num * 10) / 10 works, here is an example...
var number = 12.3456789
var rounded = Math.round(number * 10) / 10
// rounded is 12.3
if you want it to have one decimal place, even when that would be a 0, then add...
var fixed = rou...
How do I calculate the date in JavaScript three months prior to today?
... works for January. Run this snippet:
var d = new Date("January 14, 2012");
console.log(d.toLocaleDateString());
d.setMonth(d.getMonth() - 3);
console.log(d.toLocaleDateString());
There are some caveats...
A month is a curious thing. How do you define 1 month? 30 days? Most peo...
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
...l evaluate to true if value is not:
null
undefined
NaN
empty string ("")
0
false
The above list represents all possible falsy values in ECMA-/Javascript. Find it in the specification at the ToBoolean section.
Furthermore, if you do not know whether a variable exists (that means, if it was decla...