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How do I check if file exists in jQuery or pure JavaScript?
...tus!=404;
}
Small changes and it could check for status HTTP status code 200 (success), instead.
EDIT 2: Since sync XMLHttpRequest is deprecated, you can add a utility method like this to do it async:
function executeIfFileExist(src, callback) {
var xhr = new XMLHttpRequest()
xhr.onready...
When to use lambda, when to use Proc.new?
... Ruby breaks the much-vaunted Principle of Least Surprise:
def whowouldwin2
myproc = Proc.new {return "Freddy"}
myproc.call
# myproc gets called and returns "Freddy",
# but also returns control from whowhouldwin2!
# The line below *never* gets executed.
return "Jason"
end
whowoul...
How to turn a String into a JavaScript function call? [duplicate]
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edited Feb 21 at 22:19
Callum Watkins
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Python 3 ImportError: No module named 'ConfigParser'
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edited Apr 13 '16 at 12:10
Mark Amery
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How to create json by JavaScript for loop?
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edited Dec 20 '13 at 22:18
answered May 28 '09 at 14:03
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Reloading submodules in IPython
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542
IPython comes with some automatic reloading magic:
%load_ext autoreload
%autoreload 2
It will...
Jackson - Deserialize using generic class
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12 Answers
12
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How do you upload images to a gist?
... approach, thanks.
– FoxDeploy
Jan 12 '19 at 4:22
2
Very nice. The file extension of the gist mak...
How to retrieve a module's path?
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answered Oct 29 '08 at 23:57
orestisorestis
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Flags to enable thorough and verbose g++ warnings
...ast-align -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wnoexcept -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-null-sentinel -Wstrict-overflow=5 -W...