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How do I preview emails in Rails?
...review.rb
class NotifierPreview < ActionMailer::Preview
# Accessible from http://localhost:3000/rails/mailers/notifier/welcome
def welcome
Notifier.welcome(User.first)
end
end
share
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Intro to GPU programming [closed]
...lets you write GPGPU kernels in C. The compiler will produce GPU microcode from your code and send everything that runs on the CPU to your regular compiler. It is NVIDIA only though and only works on 8-series cards or better. You can check out CUDA zone to see what can be done with it. There are som...
How to estimate how much memory a Pandas' DataFrame will need?
...le, df is a dataframe with 814 rows, 11 columns (2 ints, 9 objects) - read from a 427kb shapefile
sys.getsizeof(df)
>>> import sys
>>> sys.getsizeof(df)
(gives results in bytes)
462456
df.memory_usage()
>>> df.memory_usage()
...
(lists each column at 8 bytes/row)
&...
How do I check that a Java String is not all whitespaces?
...s behavior isn't correctly documented and appears to diverge substantially from every other implementation of string matching using Regular Expressions.
– Rob Raisch
May 26 '15 at 15:46
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IllegalMonitorStateException on wait() call
...
good catch. i assumed he meant Object.wait() and called from a thread
– reccles
Oct 8 '09 at 12:00
2
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Looking for simple Java in-memory cache [closed]
...
Thanks, an additional question: If I retrieve an object from EHcache (say, an array), and modify it - will the object be updated in the cache? ie. is EHCache maintaining references to the objects?
– sanity
Feb 22 '09 at 20:38
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How to get the unique ID of an object which overrides hashCode()?
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If you cannot access the source code, just extend from it and use the extended class. Simply quick, easy and dirty solution but it works.
– John Pang
Jan 26 '15 at 7:34
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Handling the window closing event with WPF / MVVM Light Toolkit
...hind" mantra is not the goal in itself, the point is to decouple ViewModel from the View. Even when the event is bound in code-behind of the View, the ViewModel does not depend on the View and the closing logic can be unit-tested.
...
Add a property to a JavaScript object using a variable as the name?
...dynamically creating objects and so I ended up here and happily benefited from this answer.
– Oliver Lloyd
Oct 29 '16 at 17:40
2
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For..In loops in JavaScript - key value pairs
...k if your target really has that property, rather than having inherited it from its prototype. A bit simpler would be:
for (var k in target){
if (typeof target[k] !== 'function') {
alert("Key is " + k + ", value is" + target[k]);
}
}
It just checks that k is not a method (as if t...