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Check whether a path is valid
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Try Uri.IsWellFormedUriString():
The string is not correctly escaped.
http://www.example.com/path???/file name
The string is an absolute Uri that represents an implicit file Uri.
c:\\directory\filename
The string is an absolute URI that is mi...
Android View.getDrawingCache returns null, only null
...view that has width and height of 0 (i.e. imagine having a TextView with a string text of an empty string). In this case, getDrawingCache will return null, so just be sure to check for that. Hope that helps some people out there.
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How to check if a string contains a substring in Bash
I have a string in Bash:
26 Answers
26
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Cleaning up the iPhone simulator
...up a customer's iPhone when you ship a new version with a new schema.
For extra points, after determining that you have encountered an old schema, you may want to copy the new database over without destroying the old one, and load any interesting data out of the old database, into the new one. T...
Activity has leaked window that was originally added
...ct to the scene (shouldn't have happened but it did) but it didn't give an extra exception for it and the whole thing was masked by the "leaked window" exception instead.
– Neph
Sep 10 '18 at 12:47
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How do you append to a file in Python?
... "a"), that a indicates the appending the file, that means allow to insert extra data to the existing file.
You can just use this following lines to append the text in your file
def FileSave(filename,content):
with open(filename, "a") as myfile:
myfile.write(content)
FileSave("test.tx...
Shortest way to print current year in a website
...up what browsers already do.
You can drop the semicolon at the end for one extra saved character, because JavaScript has "automatic semicolon insertion," a feature I normally despise and rail against, but in this specific use case it should be safe enough.
It's important to note that this only wor...
How to filter object array based on attributes?
...) ...
]
};
// (Note that because `price` and such are given as strings in your object,
// the below relies on the fact that <= and >= with a string and number
// will coerce the string to a number before comparing.)
var newArray = obj.homes.filter(function (el) {
return el.pr...
How to overcome TypeError: unhashable type: 'list'
...b'x') (which makes sure you are splitting the byte with the proper type of string). You can also open the file using with open('filename.txt', 'rU') as f: (or even with open('filename.txt', 'r') as f:) and it should work fine.
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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...dirname(__FILE__));
var_dump(__DIR__);
Will both give the same output :
string '/home/squale/developpement/tests/temp' (length=37)
But, there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at co...