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In Firebase, is there a way to get the number of children of a node without loading all the node dat
...votesRef.transaction(function (current_value) {
return (current_value || 0) + 1;
});
For more info, see https://www.firebase.com/docs/transactions.html
UPDATE:
Firebase recently released Cloud Functions. With Cloud Functions, you don't need to create your own Server. You can simply write JavaSc...
Is it possible to use global variables in Rust?
... "A static string";
static SOME_STRUCT: MyStruct = MyStruct {
number: 10,
string: "Some string",
};
static mut db: Option<sqlite::Connection> = None;
fn main() {
println!("{}", SOME_INT);
println!("{}", SOME_STR);
println!("{}", SOME_STRUCT.number);
println!("{}", SOME...
Which rows are returned when using LIMIT with OFFSET in MySQL?
...
190
It will return 18 results starting on record #9 and finishing on record #26.
Start by reading t...
Mocking objects with Moq when constructor has parameters
...te the Moq with constructor arg specification. http://www.mockobjects.com/2007/04/test-smell-mocking-concrete-classes.html
The best thing to do would be right click on your class and choose Extract interface.
share
...
What's the difference between “declare class” and “interface” in TypeScript
...
Ryan CavanaughRyan Cavanaugh
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...
Optimum way to compare strings in JavaScript? [duplicate]
...pare() method.
string_a.localeCompare(string_b);
/* Expected Returns:
0: exact match
-1: string_a < string_b
1: string_a > string_b
*/
Further Reading:
MDN: String.prototype.localeCompare
Stack Overflow - Is there a JavaScript strcmp()?
Tutorials Point: JavaScript String - loc...
slashes in url variables
...
180
You need to escape the slashes as %2F.
...
javascript toISOString() ignores timezone offset [duplicate]
...llowing works as well:
var tzoffset = (new Date()).getTimezoneOffset() * 60000; //offset in milliseconds
var localISOTime = (new Date(Date.now() - tzoffset)).toISOString().slice(0, -1);
// => '2015-01-26T06:40:36.181'
The slice(0, -1) gets rid of the trailing Z which represents Zulu timezone a...
Combining multiple @SuppressWarnings annotations - Eclipse Indigo
...
307
Use the following:
@SuppressWarnings({"unused", "unchecked"})
...
Git pull without checkout?
...
230
I was looking for the same thing and finally found the answer that worked for me in another stac...