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How can I get current location from user in iOS
...ation];
[locationManager startUpdatingLocation];
You also have to add a string for the NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription keys to the app's Info.plist. Otherwise calls to startUpdatingLocation will be ignored and your delegate will not receive any callback.
A...
Pickle or json?
...
The benchmark cited by @mac only tests strings. I tested str, int and float seperately and found out that json is slower than cPickle with float serialization, but faster with float unserialization. For int (and str), json is faster both ways. Data and code: gist....
Algorithm to generate a crossword
...ithout intervention but you'd still get maybe a fifth requiring one or two extra words added. And we're talking about thousands of words in the file. No doubt backtracking could have helped but it was easier just for the client to reject one with (e.g.) 5 unfinished words than worry about trying to ...
How does Hadoop process records split across block boundaries?
...ow away first record
// because we always (except the last split) read one extra line in
// next() method.
if (start != 0) {
start += in.readLine(new Text(), 0, maxBytesToConsume(start));
}
this.pos = start;
from this I believe hadoop will read one extra line for each split(at the end of current...
Remove an item from array using UnderscoreJS
...
Please exercise care if you are filtering strings and looking for case insensitive filters. _.without() is case sensitive. You can also use _.reject() as shown below.
var arr = ["test","test1","test2"];
var filtered = _.filter(arr, function(arrItem) {
return ar...
nodejs get file name from absolute path?
...ed by the example in your question, you could keep it simple and split the string by separator:
'/foo/bar/baz/asdf/quux.html'.split('/').pop()
That would be faster (and cleaner imo) than replacing by regular expression.
Again: Only do this if you're writing for a specific environment, otherwise ...
How to initialize an array in one step using Ruby?
...ot required, but included for clarity
For arrays of whitespace-delimited strings, you can use Percent String syntax:
array = %w[ 1 2 3 ]
You can also pass a block to Array.new to determine what the value for each entry will be:
array = Array.new(3) { |i| (i+1).to_s }
Finally, although it doe...
How can I append a string to an existing field in MySQL?
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You need to use the CONCAT() function in MySQL for string concatenation:
UPDATE categories SET code = CONCAT(code, '_standard') WHERE id = 1;
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How to extract a substring using regex
I have a string that has two single quotes in it, the ' character. In between the single quotes is the data I want.
13 An...
Which characters are valid in CSS class names/selectors?
...lready separate classes from each other.
So, if you need to turn a random string into a CSS class name: take care of NUL and space, and escape (accordingly for CSS or HTML). Done.
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