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C# - how to determine whether a Type is a number
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How can you downvote me on an answer based on current technology. Maybe in .NET 62, int will be removed - are you going to downvote all answers with int?
– Philip Wallace
Nov 27 '09 at 19:09
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Why prefer two's complement over sign-and-magnitude for signed numbers?
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Stefano VernaStefano Verna
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Random string generation with upper case letters and digits
... Using string.ascii_uppercase (or string.ascii_letters + string.digits for base62 instead of base36) is safer in cases where encoding is involved.
– Blixt
May 17 '15 at 18:03
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How to launch jQuery Fancybox on page load?
...document.ready()) appears to the be the trick used in the JSFiddler onload demos of Fancybox 2.0:
$(window).load(function()
{
$.fancybox("test");
});
Bare in mind you may be using document.ready() elsewhere, and IE9 gets upset with the load order of the two. This leaves you with two options: ...
how to check the dtype of a column in python pandas
...select_dtypes('bool'). It may be used even for selecting groups of columns based on dtype:
test = pd.DataFrame({'bool' :[False, True], 'int64':[-1,2], 'int32':[-1,2],'float': [-2.5, 3.4],
'compl':np.array([1-1j, 5]),
'dt' :[pd.Timestamp('2013-01-02'), pd....
Getting current date and time in JavaScript
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.getMonth() returns a zero-based number so to get the correct month you need to add 1, so calling .getMonth() in may will return 4 and not 5.
So in your code we can use currentdate.getMonth()+1 to output the correct value. In addition:
.getDate() re...
How to take screenshot with Selenium WebDriver
... that does the same thing.
There are also methods for: .get_screenshot_as_base64() (for embedding in html) and .get_screenshot_as_png()(for retrieving binary data).
and Note that WebElements have a .screenshot() method that works similarly, but only captures the selected element.
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How to pass prepareForSegue: an object
...egueWithIdentifier:sender: method to activate the transition to a new view based on a selection or button press.
For instance, consider I had two view controllers. The first contains three buttons and the second needs to know which of those buttons has been pressed before the transition. You co...
How to make an image center (vertically & horizontally) inside a bigger div [duplicate]
...nter an element horizontally and vertically. The element position could be based on a parent element position using relative positioning. View Result
img {
position: absolute;
margin: auto;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
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Regex Match all characters between two strings
... my second in This is my first sentence. This is my second sentence.
See demo.
You need a lazy quantifier between the two lookarounds. Adding a ? makes the star lazy.
This matches what you want:
(?<=This is).*?(?=sentence)
See demo. I removed the capture group, which was not needed.
DO...