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PostgreSQL: Difference between text and varchar (character varying)
...tailed testing to show that the performance of inserts and selects for all 4 data types are similar. It also takes a detailed look at alternate ways on constraining the length when needed. Function based constraints or domains provide the advantage of instant increase of the length constraint, and o...
JavaScript Form Submit - Confirm or Cancel Submission Dialog Box
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407
A simple inline JavaScript confirm would suffice:
<form onsubmit="return confirm('Do you r...
Exporting APK from eclipse (ADT) silently crashes
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411
Disable Project/Build Automatically when you are exporting
I think is a problem of Eclipse un...
Multiple github accounts on the same computer?
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24 Answers
24
Active
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How to get the jQuery $.ajax error response text?
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314
Try:
error: function(xhr, status, error) {
var err = eval("(" + xhr.responseText + ")");
al...
Running a cron job on Linux every six hours
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edited Jun 14 at 16:31
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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Remove duplicate dict in list in Python
..., with a few lines of code, you can also do that:
l = [{'a': 123, 'b': 1234},
{'a': 3222, 'b': 1234},
{'a': 123, 'b': 1234}]
seen = set()
new_l = []
for d in l:
t = tuple(d.items())
if t not in seen:
seen.add(t)
new_l.append(d)
print new_l
Example output:...
How can I send an email by Java application using GMail, Yahoo, or Hotmail?
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14 Answers
14
Active
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Android: How to bind spinner to custom object list?
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43
You can look at this answer. You can also go with a custom adapter, but the solution below is f...
When to encode space to plus (+) or %20?
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493
+ means a space only in application/x-www-form-urlencoded content, such as the query part of a...