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Prevent double submission of forms in jQuery
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Eg, if the form creates an order, put a unique ID in the form. The first time the server sees an order creation request with that id, it should create it and respond "success". Subsequent submissions should also respond "success" (in case the client didn't get the first response) but shouldn't cha...
How do BitTorrent magnet links work?
For the first time I used a magnet link . Curious about how it works, I looked up the specs and didn't find any answers. The wiki says xt means "exact topic" and is followed by the format ( btih in this case) with a SHA1 hash. I saw base32 mentioned, knowing it's 5 bits per character and 32 char...
How does a PreparedStatement avoid or prevent SQL injection?
...ected in Query optimization plan is stored in cache, so that whenever next
time same query comes in, it doesn't have to pass through Phase 1, Phase 2 and Phase 3 again.
When next time query come in, it will be checked directly in Cache and picked up from there
to execute.
Execution Phase:
In this ph...
How to increase editor font size?
...er you want. However, the font will get reset to the default size the next time you start Android Studio. (The Control+Mouse Wheel functionality will not get reset, though. You only need to do this once.)
Permanently change the default font size
Go to Settings > Editor > Colors & Fonts >...
Regex to get string between curly braces
Unfortunately, despite having tried to learn regex at least one time a year for as many years as I can remember, I always forget as I use them so infrequently. This year my new year's resolution is to not try and learn regex again - So this year to save me from tears I'll give it to Stack Overflow ...
Bash: infinite sleep (infinite blocking)
..." to a double. Then that double is truncated to the maximum values allowed timespec, which means a very large amount of seconds (architecture-dependant) but, in theory, finite.
– jp48
Aug 19 '17 at 11:16
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Create a Date with a set timezone without using a string representation
... constructor that takes numbers, then I get a Date object for my current timezone:
23 Answers
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How much faster is Redis than mongoDB?
...rm simply setting/retrieving values:
#!/usr/bin/env python2.7
import sys, time
from pymongo import Connection
import redis
# connect to redis & mongodb
redis = redis.Redis()
mongo = Connection().test
collection = mongo['test']
collection.ensure_index('key', unique=True)
def mongo_set(data):
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Do I really need to encode '&' as '&'?
...g on the following text. So the easiest path is probably to encode all the time.
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SQL Server reports 'Invalid column name', but the column is present and the query works through mana
...sion of the object (that owned by 'dbo'). This is the usual case. The only time a single probe will resolve the name is if the current user owns an object of the specified name and type.
[Edited to further note]
The other possibilities are (in no particular order):
You aren't connected to the d...