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Check if a path represents a file or a folder
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205
Assuming path is your String.
File file = new File(path);
boolean exists = file.exists()...
How do you update Xcode on OSX to the latest version?
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edited Aug 25 at 17:04
Doug Null
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answe...
How could I ignore bin and obj folders from git repository?
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answered Feb 27 '10 at 12:59
Tim RobinsonTim Robinson
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How to make DialogFragment width to Fill_Parent
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savepopulationsavepopulation
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General suggestions for debugging in R
...on and step through the script line by line.
The best new trick in R 2.10 (when working with script files) is to use the findLineNum() and setBreakpoint() functions.
As a final comment: depending upon the error, it is also very helpful to set try() or tryCatch() statements around external func...
Bootstrap Alert Auto Close
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For a smooth slideup:
$("#success-alert").fadeTo(2000, 500).slideUp(500, function(){
$("#success-alert").slideUp(500);
});
$(document).ready(function() {
$("#success-alert").hide();
$("#myWish").click(function showAlert() {
$("#success-alert").fadeTo(2...
“Eliminate render-blocking CSS in above-the-fold content”
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+500
A related question has been asked before: What is “above-the-fold content” in Google Pagespeed?
Firstly you have to notice that ...
Calculate the median of a billion numbers
... the network can be presumed to be instantaneous, for example if you have 100 cores with equal access to RAM containing the data.
Since network I/O is likely to be the bound, there might be some tricks you can play, at least for the data coming back to the control machine. For example, instead of s...
mongo group query how to keep fields
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answered May 21 '13 at 5:40
MervSMervS
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Simple way to transpose columns and rows in SQL?
... CASE Version:
select name,
sum(case when color = 'Red' then value else 0 end) Red,
sum(case when color = 'Green' then value else 0 end) Green,
sum(case when color = 'Blue' then value else 0 end) Blue
from
(
select color, Paul value, 'Paul' name
from yourTable
union all
select color, ...