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Javascript how to split newline
...examples that display the importance of this method:
var examples = ["Foo\r\nBar", "Foo\r\n\r\nBar", "Foo\n\r\n\rBar", "Foo\nBar\nFooBar"];
examples.forEach(function(example) {
output(`Example "${example}":`);
output(`Split using "\n": "${example.split("\n")}"`);
output(`Split using...
Where can I learn how to write C code to speed up slow R functions? [closed]
...examples. This function creates a character vector using the C API:
SEXP foobar(){
SEXP ab;
PROTECT(ab = allocVector(STRSXP, 2));
SET_STRING_ELT( ab, 0, mkChar("foo") );
SET_STRING_ELT( ab, 1, mkChar("bar") );
UNPROTECT(1);
}
Using Rcpp, you can write the same function as:
SEXP fooba...
MongoDB: How to update multiple documents with a single command?
...e(), where the the third argument is the upsert argument:
db.test.update({foo: "bar"}, {$set: {test: "success!"}}, false, true);
For versions of mongodb 2.2+ you need to set option multi true to update multiple documents at once.
db.test.update({foo: "bar"}, {$set: {test: "success!"}}, {multi: t...
Is there a function to make a copy of a PHP array to another?
...ts are assigned by reference. This means that:
$a = array();
$b = $a;
$b['foo'] = 42;
var_dump($a);
Will yield:
array(0) {
}
Whereas:
$a = new StdClass();
$b = $a;
$b->foo = 42;
var_dump($a);
Yields:
object(stdClass)#1 (1) {
["foo"]=>
int(42)
}
You could get confused by intrica...
Why does dividing two int not yield the right value when assigned to double?
...swered Sep 27 '11 at 15:04
Fred FooFred Foo
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...
Why does Ruby have both private and protected methods?
...in):005:2> end
irb(main):006:1> end
=> nil
irb(main):007:0> foo = A.new
=> #<A:0x31688f>
irb(main):009:0> foo.send :not_so_private_method
Hello World
=> nil
share
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i...
Return array in a function
...ntax to achieve it is by using a typedef: typedef int array[5]; array& foo(); But you don't even need the typedef if you care to write this: int (&foo())[5] { static int a[5] = {}; return a; }, the example in the question would be: int (&foo( int (&a)[5] ))[5] { return a; }. Simple, ...
Reset CSS display property to default value
...S is to look up the browser default value and set it manually to that:
div.foo { display: inline-block; }
div.foo.bar { display: block; }
(An alternative to the above would be div.foo:not(.bar) { display: inline-block; }, but that involves modifying the original selector rather than an override.)
...
How to auto-indent code in the Atom editor?
...you auto-indent your code in the Atom editor? In other editors you can usually select some code and auto-indent it.
11 Ans...
Making the main scrollbar always visible
What CSS is required to make the browser's vertical scrollbar remain visible when a user visits a web page (when the page hasn't enough content to trigger the scrollbar's activation)?
...