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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
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edited Jan 31 '18 at 10:32
emjames
5122 silver badges66 bronze badges
answered Jan 22 '16 at 22:46
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How to create Java gradle project
...ild init plugin can be found here: gradle.org/docs/current/userguide/build_init_plugin.html
– Paul
Dec 19 '14 at 17:54
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How do I store an array in localStorage? [duplicate]
... have to do this and what is going on please?
– Howdy_McGee
Feb 26 '13 at 6:08
14
@Howdy_McGee As...
Python assigning multiple variables to same value? list behavior
...]=1 is actually calling a method on the list object. (It's equivalent to a.__setitem__(0, 1).) So, it's not really rebinding anything at all. It's like calling my_object.set_something(1). Sure, likely the object is rebinding an instance attribute in order to implement this method, but that's not wha...
convert String to DateTime
I need to parse following String into a DateTime Object:
30/Nov/2009:16:29:30 +0100
8 Answers
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How do I check if a given string is a legal/valid file name under Windows?
...he \?\ prefix)
Unicode file paths (including the file name) with more than 32,000 characters when using \?\ (note that prefix may expand directory components and cause it to overflow the 32,000 limit)
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Do I cast the result of malloc?
...zeof first, in this case, ensures multiplication is done with at least size_t math.
Compare: malloc(sizeof *sieve * length * width) vs. malloc(length * width * sizeof *sieve) the second may overflow the length * width when width and length are smaller types than size_t.
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MySQL - UPDATE query based on SELECT Query
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MySQL update join syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
-- where clause can go here
ANSI SQL syntax:
UPDATE tableA SET validation_check =
(SELECT if(start_DTS > end_DTS, 'VALID', '') AS validat...
How do I replace a git submodule with another repo?
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answered May 6 '15 at 17:32
hobberwickeyhobberwickey
4,78111 gold badge2222 silver badges2828 bronze badges
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Pass Variables by Reference in Javascript
...;
return context[name];
}
}
Variable Declaration
rvar('test_ref');
test_ref = 5; // test_ref.value = 5
Or:
rvar('test_ref', 5); // test_ref.value = 5
Test Code
rvar('test_ref_number');
test_ref_number = 5;
function Fn1 (v) { v.value = 100; }
console.log("rvar('test_ref_number')...