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Determine path of the executing script
I have a script called foo.R that includes another script other.R , which is in the same directory:
27 Answers
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How can I create a two dimensional array in JavaScript?
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var arr = Array.from(Array(2), () => new Array(4));
arr[0][0] = 'foo';
console.info(arr);
The same trick can be used to Create a JavaScript array containing 1...N
Alternatively (but more inefficient 12% with n = 10,000)
Array(2).fill(null).map(() => Array(4))
The performan...
How do I create a copy of an object in PHP?
...s->someObject;
}
}
Now you can do cloning:
$bar = new MyClass();
$foo = clone $bar;
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Is there a concurrent List in Java's JDK?
How can I create a concurrent List instance, where I can access elements by index? Does the JDK have any classes or factory methods I can use?
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How can I extend typed Arrays in Swift?
...ement is a placeholder for the contained type. For example: var myArray = [Foo]() means that myArray will only contain type Foo. Foo in this case is "mapped" to the generic placeholder Element. If you want to change the general behavior of Array (via extension) you would use the generic placeholder ...
PHP method chaining?
...the host object, while a Fluent Interface is aimed at creating a DSL. Ex: $foo->setBar(1)->setBaz(2) vs $table->select()->from('foo')->where('bar = 1')->order('ASC). The latter spans multiple objects.
– Gordon
Sep 16 '10 at 7:32
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Is it not possible to stringify an Error using JSON.stringify?
... writable: true
});
var error = new Error('testing');
error.detail = 'foo bar';
console.log(JSON.stringify(error));
// {"message":"testing","detail":"foo bar"}
Using Object.defineProperty() adds toJSON without it being an enumerable property itself.
Regarding modifying Error.prototype, wh...
Globally catch exceptions in a WPF application?
We are having a WPF application where parts of it may throw exceptions at runtime. I'd like to globally catch any unhandled exception and log them, but otherwise continue program execution as if nothing happened (kinda like VB's On Error Resume Next ).
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SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or
When I backup or restore a database using MS SQL Server Management Studio, I get a visual indication of how far the process has progressed, and thus how much longer I still need to wait for it to finish. If I kick off the backup or restore with a script, is there a way to monitor the progress, or do...
Executing JavaScript without a browser?
...iles with the #!/usr/bin/js shebang line and things will just work:
$ cat foo.js
#!/usr/bin/js
console.log("Hello, world!");
$ ls -lAF /usr/bin/js /etc/alternatives/js /usr/bin/nodejs
lrwxrwxrwx 1 root root 15 Jul 16 04:26 /etc/alternatives/js -> /usr/bin/nodejs*
lrwxrwxrwx 1 root root ...