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What are the rules for JavaScript's automatic semicolon insertion (ASI)?
...ents are affected by the automatic semicolon insertion (also known as ASI for brevity):
empty statement
var statement
expression statement
do-while statement
continue statement
break statement
return statement
throw statement
The concrete rules of ASI, are described in the specification §11.9.1 R...
django - query filter on manytomany is empty
In Django is there a way to filter on a manytomany field being empty or null.
2 Answers
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Calling static generic methods
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Or, as in my case: Foo.<E>createFoo(); Thank you :)
– fredoverflow
Mar 14 '11 at 11:37
7
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.bashrc at ssh login
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this should work on any sane distro with Bash, thus all these comments are obsolete :)
– user529649
Jul 2 '12 at 2:09
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What is the MIME type for Markdown?
Does anyone know if there exists a MIME type for Markdown? I guess it is text/plain , but is there a more specific one?
4 ...
How do you determine which backend is being used by matplotlib?
Either interactively, such as from within an Ipython session, or from within a script, how can you determine which backend is being used by matplotlib?
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How do I convert a string to a number in PHP?
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You don't typically need to do this, since PHP will coerce the type for you in most circumstances. For situations where you do want to explicitly convert the type, cast it:
$num = "3.14";
$int = (int)$num;
$float = (float)$num;
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Does JavaScript have “Short-circuit” evaluation?
I would like to know if JavaScript has "short-circuit" evaluation like && Operator in C#. If not, I would like to know if there is a workaround that makes sense to adopt.
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How do I pass parameters into a PHP script through a webpage?
.... However, there is a parameter that the PHP script needs to run (which I normally pass through the command line when I am testing the script).
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How to call shell commands from Ruby
...a shell, it typically calls /bin/sh, not Bash. Some Bash syntax is not supported by /bin/sh on all systems.
Here are ways to execute a shell script:
cmd = "echo 'hi'" # Sample string that can be used
Kernel#` , commonly called backticks – `cmd`
This is like many other languages, including Ba...