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How to convert a string to number in TypeScript?
...y: number = +x;
All of the mentioned techniques will have correct typing and will correctly parse simple decimal integer strings like "123", but will behave differently for various other, possibly expected, cases (like "123.45") and corner cases (like null).
Table taken from this answer
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How to solve error message: “Failed to map the path '/'.”
I've searched and searched on Google, and I can't find anything that even seems applicable to my situation, let alone solves the problem. It doesn't matter which address in my website I try to navigate to (even addresses that don't exist give this error instead of a 404), I get the exact same messag...
Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...s evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time
so, __DIR__ is (or, should be) faster.
As, as a reference, see the Magic constants section of the manual (quoting) :
__DIR__ : The directory of the file.
If used inside an includ...
How to break a line of chained methods in Python?
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I also like it best. Doesn't add more code and it's without backslashes.
– Juliusz Gonera
Jan 22 '11 at 23:17
23
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One line if-condition-assignment
...ssible in Python, since what you're actually trying to do probably gets expanded to something like this:
num1 = 20 if someBoolValue else num1
If you exclude else num1, you'll receive a syntax error since I'm quite sure that the assignment must actually return something.
As others have already me...
Which characters are valid in CSS class names/selectors?
...racter is a hyphen, the second character must2 be a letter or underscore, and the name must be at least 2 characters long.
-?[_a-zA-Z]+[_a-zA-Z0-9-]*
In short, the previous rule translates to the following, extracted from the W3C spec.:
In CSS, identifiers (including element names, classes, ...
S3 Error: The difference between the request time and the current time is too large
I have error The difference between the request time and the current time is too large when call method amazons3.ListObjects
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Convert php array to Javascript
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agreed: if you're using and old PHP, you'll need to write your own. However, you should also consider upgrading your PHP if at all possible!
– Spudley
Apr 11 '11 at 9:25
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What is the difference between MediaPlayer and VideoView in Android
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Was asking the same question and as I understood from what Mark (CommonsWare) advised on numerous threads here, VideoView is a wrapper (200 hundred lines of code) for MediaPlayer and SurfaceView to provide embedded controls.
He also kindly shared some e...
Unable to forward search Bash history similarly as with CTRL-r
...earch forward as well. From the bash info manual, "8.2.5 Searching for Commands in the History":
To search backward in the history for a particular string, type C-r.
Typing C-s searches forward through the history.
The problem with Ctrl-S however is that sometimes collides with XON/XOFF flow...