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MongoDB Aggregation: How to get total records count?
...ponding group count(i.e, group 1 => 2 records, group 3 => 5 records & so on). I want to get the records count(i.e, total: 120 records). Hope you understood..
– user2987836
Dec 3 '13 at 10:24
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Is GridFS fast and reliable enough for production?
... since it's up and running. The resize and store stuff is done by a simple php script... but for sure, a python script, or something like java could be faster.
Current data size : 11.23g
Current storage size : 12.5g
Indices : 5
Index size : 849.65m
About the reliability : This is very reliable....
Get/pick an image from Android's built-in Gallery app programmatically
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This is a complete solution. I've just updated this example code with the information provided in the answer below by @mad. Also check the solution below from @Khobaib explaining how to deal with picasa images.
Update
I've just reviewed my original answer and created a simple ...
What is the ultimate postal code and zip regex?
... for validating a field go here regexlib.com/Search.aspx?k=decimal&c=3&m=-1&ps=100
– Dinesh Kumar
Feb 6 '10 at 5:36
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How to replace all dots in a string using JavaScript
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He means entity & #8203 ; twice, which is Unicode Character 'ZERO WIDTH SPACE' (U+200B). More information on fileformat.info/info/unicode/char/200b/index.htm
– Cœur
Feb 7 '13 at 14:07
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Why do some functions have underscores “__” before and after the function name?
...hods.
While you can call these methods directly ([10, 20].__len__() for example), the presence of the underscores is a hint that these methods are intended to be invoked indirectly (len([10, 20]) for example). Most python operators have an associated "magic" method (for example, a[x] is the usual ...
Reason for Column is invalid in the select list because it is not contained in either an aggregate f
...r which value to choose for b in each group". Why doesn't SQL put b1,b2,b3 all together in that column ?
– david blaine
Dec 22 '12 at 4:51
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Align contents inside a div
...d I think this works across all browsers, too. Try it for yourself (this example assumes all content on your site is wrapped in a div tag that uses this wrapper class and all content in it is 200px in width):
.wrapper {
position: absolute;
left: 50%;
margin-left: -100px;
}
EDIT: I for...
In C, how should I read a text file and print all strings
...igned.
If you want to read the file in chunks, but without dynamic memory allocation, you can do:
#define CHUNK 1024 /* read 1024 bytes at a time */
char buf[CHUNK];
FILE *file;
size_t nread;
file = fopen("test.txt", "r");
if (file) {
while ((nread = fread(buf, 1, sizeof buf, file)) > 0)
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cancelling a handler.postdelayed process
...92982ff8db221da14d094df6fb4
MainActivity as Screen Launcher with handler & runnable function, the Runnable run to login page or feed page with base preference login user with firebase.
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