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serve current directory from command line
could someone give me a hint, howto serve the current directory from command line with ruby? it would be great, if i can have some system wide configuration (e.g. mime-types) and simply launch it from every directory.
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
...grammer wish for that feature. The only people who seem to are programmers from other languages who are still thinking in those languages. If you only want objects of a given class in an array, only stick objects of that class in there. If you want to test that your code is behaving properly, test i...
How to create a new java.io.File in memory?
How can I create new File (from java.io ) in memory, not on the hard disk?
3 Answers
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Comparing strings with == which are declared final in Java
...red to "string" will give you true, because string literals are interned.
From JLS §4.12.4 - final Variables:
A variable of primitive type or type String, that is final and initialized with a compile-time constant expression (§15.28), is called a constant variable.
Also from JLS §15.28 - C...
Remove border from IFrame
How would I remove the border from an iframe embedded in my web app? An example of the iframe is:
25 Answers
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How to reload .bash_profile from the command line?
... @StasS - . and source are literally the same thing in bash. From the link: "source is a synonym for dot/period '.' in bash, but not in POSIX sh, so for maximum compatibility use the period."
– Carl Norum
Jan 15 '17 at 16:31
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Sort array of objects by object fields
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Use usort, here's an example adapted from the manual:
function cmp($a, $b) {
return strcmp($a->name, $b->name);
}
usort($your_data, "cmp");
You can also use any callable as the second argument. Here are some examples:
Using anonymous functions (from...
How to extract img src, title and alt from html using php? [duplicate]
...ache system, you can tweak your own by using ob_start and loading / saving from a text file.
How does this stuff work ?
First, we use preg_ match_ all, a function that gets every string matching the pattern and ouput it in it's third parameter.
The regexps :
<img[^>]+>
We apply it on ...
Difference between Destroy and Delete
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Basically destroy runs any callbacks on the model while delete doesn't.
From the Rails API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance.
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Run R script from command line
...@Dason I am also working with R script and I am trying to execute R script from Java program and I am seeing some error. Here is my question. See if you can help out. I am using your hello function example for now to make it simple.
– user1950349
Sep 16 '15 at ...