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Python circular importing?
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I think the answer by jpmc26, while by no means wrong, comes down too heavily on circular imports. They can work just fine, if you set them up correctly.
The easiest way to do so is to use import my_module syntax, rather than from my_module im...
How to print the ld(linker) search path
What is the way to print the search paths that in looked by ld in the order it searches.
6 Answers
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What is the in a .vimrc file?
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The <Leader> key is mapped to \ by default. So if you have a map of <Leader>t, you can execute it by default with \+t. For more detail or re-assigning it using the mapleader variable, see
:help leader
To define a mapping which uses the "mapleader...
How to filter rows in pandas by regex
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It may be a bit late, but this is now easier to do in Pandas by calling Series.str.match. The docs explain the difference between match, fullmatch and contains.
Note that in order to use the results for indexing, set the na=False argument (or True if you want to include NANs in the res...
UIGestureRecognizer on UIImageView
...is very important to remember to enable user interaction on the image view by setting its userInteractionEnabled property to YES. UIImageView inherits from UIView, whose user interaction property is set to YES by default, however, UIImageView's user interaction property is set to NO by default.
Fro...
Decimal number regular expression, where digit after decimal is optional
...same expression with whitespace, using the extended modifier (as supported by Perl):
/^ [+-]? ( (\d+ (\.\d*)?) | (\.\d+) ) $/x
or with comments:
/^ # Beginning of string
[+-]? # Optional plus or minus character
( # Followed by either:
( # Start of fi...
What is the difference between Trap and Interrupt?
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A trap is an exception in a user process. It's caused by division by zero or invalid memory access. It's also the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code. Handling is synchronous (so the user code is suspended ...
What is the difference between JSON and Object Literal Notation?
...ne tell me what is the main difference between a JavaScript object defined by using Object Literal Notation and JSON object ?
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Python Regex instantly replace groups
...erences (backslash, group number) which are replaced with what was matched by the groups. Groups are counted the same as by the group(...) function, i.e. starting from 1, from left to right, by opening parentheses.
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Find object by id in an array of JavaScript objects
...te: methods like find() or filter(), and arrow functions are not supported by older browsers (like IE), so if you want to support these browsers, you should transpile your code using Babel (with the polyfill).
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