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How can I find the number of days between two Date objects in Ruby?
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all of these steered me to the correct result, but I wound up doing
DateTime.now.mjd - DateTime.parse("01-01-1995").mjd
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Set CSS property in Javascript?
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This actually styles the element in the element and not in the stylesheet.
– Aft3rL1f3
Jan 17 at 14:23
add a ...
How to get the position of a character in Python?
...ring.index('s')
2
>>> myString.index('x')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: substring not found
From the Python manual
string.find(s, sub[, start[, end]])
Return the lowest index in s where the substring sub is found s...
How do I run a shell script without using “sh” or “bash” commands?
...le:
#!/bin/bash
And make your file executable (chmod +x script.sh).
Finally, modify your path to add the directory where your script is located:
export PATH=$PATH:/appropriate/directory
(typically, you want $HOME/bin for storing your own scripts)
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Hide Utility Class Constructor : Utility classes should not have a public or default constructor
...c final class FilePathHelper {
private FilePathHelper() {
//not called
}
}
This prevents the default parameter-less constructor from being used elsewhere in your code. Additionally, you can make the class final, so that it can't be extended in subclasses, which is a best practice for ...
Java: Why is the Date constructor deprecated, and what do I use instead?
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The java.util.Date class isn't actually deprecated, just that constructor, along with a couple other constructors/methods are deprecated. It was deprecated because that sort of usage doesn't work well with internationalization. The Calendar class should be use...
subtract two times in python
...datetime(1,1,1,0,0,0) instead of date.today().
– Akavall
Mar 7 '14 at 18:54
27
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How to remove newlines from beginning and end of a string?
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String.replaceAll("[\n\r]", "");
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Test if something is not undefined in JavaScript
...eryone seems to think it is). If you want to, you could create a variable called undefined and then this check will be incorrect. The only correct way is to check (typeof myVar !== 'undefined').
– BadHorsie
Jun 20 '16 at 14:12
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Have a div cling to top of screen if scrolled down past it [duplicate]
...ching a handler to the window.scroll event
// Cache selectors outside callback for performance.
var $window = $(window),
$stickyEl = $('#the-sticky-div'),
elTop = $stickyEl.offset().top;
$window.scroll(function() {
$stickyEl.toggleClass('sticky', $window.scrollTop()...