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quick random row selection in Postgres
... a table in postgres that contains couple of millions of rows. I have checked on the internet and I found the following
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What is the proper way to format a multi-line dict in Python?
... are a couple of ways one could format it. Here are a few that I could think of:
7 Answers
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What are the differences between “git commit” and “git push”?
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tanasciustanascius
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addEventListener not working in IE8
I have created a checkbox dynamically. I have used addEventListener to call a function on click of the checkbox, which works in Google Chrome and Firefox but doesn't work in Internet Explorer 8 . This is my code:
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How do I check which version of NumPy I'm using?
How can I check which version of NumPy I'm using?
15 Answers
15
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Find the division remainder of a number
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you are looking for the modulo operator:
a % b
for example:
26 % 7
Of course, maybe they wanted you to implement it yourself, which wouldn't be too difficult either.
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What does PermGen actually stand for?
I know what PermGen is, what it's used for, why it fails, how to increase it etc.
8 Answers
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How to get all properties values of a JavaScript Object (without knowing the keys)?
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By using a simple for..in loop:
for(var key in objects) {
var value = objects[key];
}
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Understanding recursion [closed]
... trouble understanding recursion at school. Whenever the professor is talking about it, I seem to get it but as soon as I try it on my own it completely blows my brains.
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Generator Expressions vs. List Comprehension
... to use any of the list methods. For example, the following code won't work:
def gen():
return (something for something in get_some_stuff())
print gen()[:2] # generators don't support indexing or slicing
print [5,6] + gen() # generators can't be added to lists
Basically, use a generator...