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Add up a column of numbers at the Unix shell
... x=$(echo <(cat)); echo $((0+${x// /+}+0)) if you want all bash all the time:
– qneill
Apr 3 '15 at 23:31
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How to dynamically update a ListView on Android [closed]
...er to the EditText, and pass the ListAdapter Filter a filter request every time the text changes. Remember to remove the TextWatcher in OnDestroy()! Here is the final solution:
private EditText filterText = null;
ArrayAdapter<String> adapter = null;
@Override
protected void onCreate(Bundle s...
presentViewController:animated:YES view will not appear until user taps again
...s a very subtle bug, because if you have the slightest feedback animation, timers, etc. in your code this issue won't surface because the runloop will be kept alive by these sources. I've found the issue by using a UITableViewCell which had its selectionStyle set to UITableViewCellSelectionStyleNone...
TDD vs. Unit testing [closed]
...t testing our code. I've been reading about TDD and unit testing for some time and am convinced of their value. I've attempted to convince our team that TDD is worth the effort of learning and changing our mindsets on how we program but it is a struggle. Which brings me to my question(s).
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Move an array element from one array position to another
I'm having a hard time figuring out how to move an array element. For example, given the following:
31 Answers
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How to resize superview to fit all subviews with autolayout?
...];
if ( self.numberOfLines == 0 )
{
// found out that sometimes intrinsicContentSize is 1pt too short!
s.height += 1;
}
return s;
}
@end
Here's a contrived UITableViewController subclass demonstrating heightForRowAtIndexPath:
#import "TSTableViewController.h"
#i...
Convert Datetime column from UTC to local time in select statement
I'm doing a few SQL select queries and would like to convert my UTC datetime column into local time to be displayed as local time in my query results. Note, I am NOT looking to do this conversion via code but rather when I am doing manual and random SQL queries against my databases.
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Iterating through a JSON object
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This question has been out here a long time, but I wanted to contribute how I usually iterate through a JSON object. In the example below, I've shown a hard-coded string that contains the JSON, but the JSON string could just as easily have come from a web service...
CAP theorem - Availability and Partition Tolerance
...t way I would explain CAP theorem is, "In a distributed data store, at the time of network partition you have to chose either Consistency or Availability and cannot get both". Newer NoSQL systems are trying to focus on Availability while traditional ACID databases had a higher focus on Consistency. ...
Inversion of Control vs Dependency Injection
... code is called, which is usually the inverse of what its done most of the time.
– brandizzi
Feb 15 '12 at 2:17
2
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