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node.js shell command execution
... you are expecting synchronous behavior while using stdout asynchronously. All of the calls in your run_cmd function are asynchronous, so it will spawn the child process and return immediately regardless of whether some, all, or none of the data has been read off of stdout. As such, when you run
co...
Java switch statement multiple cases
...ure why a responder said it was not possible. This is fine, and I do this all the time:
switch (variable)
{
case 5:
case 6:
etc.
case 100:
doSomething();
break;
}
share
|
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Does Python have a ternary conditional operator?
...s ignored, or else when b is evaluated and returned but a is ignored.
This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all.
For example:
>>> 'true' if True...
Show a number to two decimal places
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All the other answers are limited to decimal values with a dot notation. When you need to get 520,00 instead of 520.00, this simply works.
– SPRBRN
May 8 '14 at 15:06
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Add custom headers to WebView resource requests - android
...er for extraHeaders , but those are only applied to the initial request. All subsequent requests do not contain the headers. I have looked at all overrides in WebViewClient , but nothing allows for adding headers to resource requests - onLoadResource(WebView view, String url) . Any help would...
Can you use CSS to mirror/flip text?
...ds compliant answer, unfortunately we don't live in a world where this actually works for all use cases yet.
– Chris Sobolewski
Oct 20 '13 at 2:10
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Setting up a common nuget packages folder for all solutions when some projects are included in multi
...the references are changed to other solutions package folder which may actually be unavailable to another developer or build machine.
...
How to implement a many-to-many relationship in PostgreSQL?
... -- explicit pk
);
I made a few adjustments:
The n:m relationship is normally implemented by a separate table - bill_product in this case.
I added serial columns as surrogate primary keys. In Postgres 10 or later consider an IDENTITY column instead. See:
Safely rename tables using serial primary...
SQL order string as number
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MySQL automatically converts the string to a number to make the multiplication with 1
– juergen d
Aug 4 '12 at 12:40
1
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Sublime Text 2: How to delete blank/empty lines
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Small suggestion use ^(\r|\n\r?) to cover all possible line breaks.
– Haris Krajina
Nov 7 '12 at 9:22
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