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How to get the mouse position without events (without moving the mouse)?
... page with a div that covers the whole document. Inside that, create (say) 2,000 x 2,000 <a> elements (so that the :hover pseudo-class will work in IE 6, see), each 1 pixel in size. Create a CSS :hover rule for those <a> elements that changes a property (let's say font-family). In your l...
How to spyOn a value property (rather than a method) with Jasmine
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In February 2017, they merged a PR adding this feature, they released in April 2017.
so to spy on getters/setters you use:
const spy = spyOnProperty(myObj, 'myGetterName', 'get');
where myObj is your instance, 'myGetterName' is the nam...
Best way in asp.net to force https for an entire site?
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253
Please use HSTS (HTTP Strict Transport Security)
from http://www.hanselman.com/blog/HowToEnab...
Returning an array using C
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232
You can't return arrays from functions in C. You also can't (shouldn't) do this:
char *retur...
What are best practices for validating email addresses on iOS 2.0
...is the cleanest way to validate an email address that a user enters on iOS 2.0?
13 Answers
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Is !important bad for performance?
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269
It shouldn't have any effect upon the performance really. Seeing firefox's CSS parser at /sour...
Order Bars in ggplot2 bar graph
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216
The key with ordering is to set the levels of the factor in the order you want. An ordered fac...
How to test if list element exists?
...to check that the name is actually defined in the list:
foo <- list(a=42, b=NULL)
foo
is.null(foo[["a"]]) # FALSE
is.null(foo[["b"]]) # TRUE, but the element "exists"...
is.null(foo[["c"]]) # TRUE
"a" %in% names(foo) # TRUE
"b" %in% names(foo) # TRUE
"c" %in% names(foo) # FALSE
...and foo[["...
Drop all duplicate rows across multiple columns in Python Pandas
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246
This is much easier in pandas now with drop_duplicates and the keep parameter.
import pandas ...
Programmatically retrieve memory usage on iPhone
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answered Apr 24 '09 at 20:50
Jason CocoJason Coco
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