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How to get awaitable Thread.Sleep?
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334
The other answers suggesting starting a new thread are a bad idea - there's no need to do that...
How is “mvn clean install” different from “mvn install”?
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nateyolles
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answered May 16 '11 at 14:18
PowerlordPowerlord
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Android: how to draw a border to a LinearLayout
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fawaad
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answered Nov 20 '11 at 18:55
RenaudRenaud
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Can we use join for two different database tables?
...PierreRePierre
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18
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
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3 Answers
3
Active
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What does curly brackets in the `var { … } = …` statements do?
...ith Python, it's similar to this syntax:
>>> a, (b, c) = (1, (2, 3))
>>> a, b, c
(1, 2, 3)
The first code chunk is shorthand for:
var {Hotkey: Hotkey} = require("sdk/hotkeys");
// Or
var Hotkey = require("sdk/hotkeys").Hotkey;
You can rewrite the second code chunk as:
let Cc...
What is the most efficient/elegant way to parse a flat table into a tree?
...id, descendant_id) VALUES
(1,1), (1,2), (1,4), (1,6),
(2,2), (2,4),
(3,3), (3,5),
(4,4),
(5,5),
(6,6);
Now you can get a tree starting at node 1 like this:
SELECT f.*
FROM FlatTable f
JOIN ClosureTable a ON (f.id = a.descendant_id)
WHERE a.ancestor_id = 1;
The output (in MySQL c...
Qt c++ aggregate 'std::stringstream ss' has incomplete type and cannot be defined
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edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Aug 1 '12 at 1:50
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Setup RSpec to test a gem (not Rails)
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edited Jan 2 '17 at 19:13
Cœur
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answered...
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
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edited Oct 3 '18 at 4:25
answered Mar 7 '15 at 15:49
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