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Are strongly-typed functions as parameters possible in TypeScript?
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Sure. A function's type consists of the types of its argument and its return type. Here we specify that the callback parameter's type must be "function that accepts a number and returns type any":
class Foo {
save(callback: (n: number) => any) : void {
callback(42);
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read subprocess stdout line by line
...ility that is very noisy. I want to store all of the output to a log file and show some of it to the user. I thought the following would work, but the output doesn't show up in my application until the utility has produced a significant amount of output.
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Inline elements shifting when made bold on hover
I created a horizontal menu using a HTML lists and CSS. Everything works as it should except when you hover over the links. You see, I created a bold hover state for the links, and now the menu links shift because of the bold size difference.
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Add column with constant value to pandas dataframe [duplicate]
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The reason this puts NaN into a column is because df.index and the Index of your right-hand-side object are different. @zach shows the proper way to assign a new column of zeros. In general, pandas tries to do as much alignment of indices as possible. One downside is that when indice...
How to sort git tags by version string order of form rc-X.Y.Z.W?
When I enter a command:
7 Answers
7
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How to check what user php is running as?
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If available you can probe the current user account with posix_geteuid and then get the user name with posix_getpwuid.
$username = posix_getpwuid(posix_geteuid())['name'];
If you are running in safe mode however (which is often the case when exec is disabled), then it's unlikely that your PH...
Exact time measurement for performance testing [duplicate]
...d Mar 24 '13 at 11:05
Ivaylo Strandjev
62.1k1313 gold badges104104 silver badges159159 bronze badges
answered Jun 9 '09 at 10:40
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How to get all registered routes in Express?
I have a web application built using Node.js and Express. Now I would like to list all registered routes with their appropriate methods.
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Creating an R dataframe row-by-row
...d like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list.
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Setting a property by reflection with a string value
...o change representation formats. Not all conversions are possible, though, and you may need to write special case logic if you want to support conversions from types that are not IConvertible.
The corresponding code (without exception handling or special case logic) would be:
Ship ship = new Ship(...