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Android: Getting a file URI from a content URI?
...,"URI = "+ _uri);
if (_uri != null && "content".equals(_uri.getScheme())) {
Cursor cursor = this.getContentResolver().query(_uri, new String[] { android.provider.MediaStore.Images.ImageColumns.DATA }, null, null, null);
cursor.moveToFirst();
...
Backup/Restore a dockerized PostgreSQL database
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edited Aug 28 '18 at 20:00
Soviut
75.7k4040 gold badges160160 silver badges224224 bron...
Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remember that ar...
Count the number of occurrences of a character in a string in Javascript
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A quick Google search got this (from http://www.codecodex.com/wiki/index.php?title=Count_the_number_of_occurrences_of_a_specific_character_in_a_string#JavaScript)
String.prototype.count=function(s1) {
return (this.length - this.replace(new RegExp(s1,"g"), '').length) / s1.length;
}
Use it ...
How to convert a String to its equivalent LINQ Expression Tree?
...xpression.NotEqual(left, right);
break;
case "&&":
InnerLambda = Expression.And(left, right);
break;
case "||":
InnerLambda = Expression.Or(left, right);
break;
}
return In...
What is the canonical way to check for errors using the CUDA runtime API?
...acro, which will process the return status of the API call it wraps, for example:
gpuErrchk( cudaMalloc(&a_d, size*sizeof(int)) );
If there is an error in a call, a textual message describing the error and the file and line in your code where the error occurred will be emitted to stderr and t...
Internet Explorer 9 not rendering table cells properly
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I also added   to the empty cells.
– Bakudan
Jul 25 '13 at 10:26
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Chrome sendrequest error: TypeError: Converting circular structure to JSON
...or(censor) {
var i = 0;
return function(key, value) {
if(i !== 0 && typeof(censor) === 'object' && typeof(value) == 'object' && censor == value)
return '[Circular]';
if(i >= 29) // seems to be a harded maximum of 30 serialized objects?
return '[...
Commenting in a Bash script inside a multiline command
...at file1 | # comment<newline>sort works fine. So too does cat file1 && # comment<newline>echo foo. So comments can be included after | or && or ||, but not after `\` or in the middle of a command.
– dubiousjim
Jan 12 '13 at 22:53
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Get line number while using grep
...number do this:
grep -nr Pattern file.ext | gawk '{print $1}' FS=":"
Example:
$ grep -nr 9780545460262 EXT20130410.txt | gawk '{print $1}' FS=":"
48793
52285
54023
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