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Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
... setup() {
Serial.begin(9600);
// set Light pin to output mode
// set advertised local name and service UUID:
blePeripheral.setLocalName("ControlLED");
blePeripheral.setAdvertisedServiceUuid(ControlLED.uuid());
// add...
Clang optimization levels
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I found this related question.
To sum it up, to find out about compiler optimization passes:
llvm-as < /dev/null | opt -O3 -disable-output -debug-pass=Arguments
As pointed out in Geoff Nixon's answer (+1), clang additionally runs some higher level optimizations, which we ...
Count table rows
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We have another way to find out the number of rows in a table without running a select query on that table.
Every MySQL instance has information_schema database. If you run the following query, it will give complete details about the table including th...
setBackground vs setBackgroundDrawable (Android)
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It still complains about setBackgroundDrawable being deprecated. Do I really have to suppresswarnings just because Google wanted to change the method name?
– Charlie-Blake
Oct 25 '12 at 9:07
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Converting JavaScript object with numeric keys into array
...= $.map(obj, function(el) { return el });
FIDDLE
and almost as easy without jQuery as well, converting the keys to an array and then mapping back the values with Array.map
var arr = Object.keys(obj).map(function(k) { return obj[k] });
FIDDLE
That's assuming it's already parsed as a javascript...
Get the previous month's first and last day dates in c#
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I would just like to point out that if entries are stored using a a full datetime this query may fail to retrieve any that start after 12:00 AM on the last day of the month. You could solve this by changing the last line to read var last = month.Add...
Strip spaces/tabs/newlines - python
...', 'lines', 'and', 'tabs']
Use str.join on the returned list to get this output:
>>> ' '.join(myString.split())
'I want to Remove all white spaces, new lines and tabs'
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How do I convert array of Objects into one Object in JavaScript?
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Check out FirstOne's answer for a modern approach.
– Tibos
Feb 10 '19 at 13:14
add a comment
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Reducing the space between sections of the UITableView
...way to reduce the space between two sections of a UITableView? There are about 15 pixels between every single section I have. I did already try to return 0 for -tableView:heightForFooterInSection: and -tableView:heightForHeaderInSection: but that doesn't change anything.
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What are good message queue options for nodejs? [closed]
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if you just want the power of messaging without the technical concerns creeping in then you can try node-ts.github.io/bus
– Andrew dh
Apr 29 '19 at 13:21
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