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In Clojure, when should I use a vector over a list, and the other way around?
...ter than a vector, because the items don't need to be shuffled around each time. However, if you want to get at specific elements (not near the front or back of the list) frequently (i.e., random access), you will want to use vector.
By the way, vectors can easily be turned into seqs.
user=> (d...
How to replace innerHTML of a div using jQuery?
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How is the 'use strict' statement interpreted in Node.js? [duplicate]
I have started to explore the Node.js and wrote many demo web application, to understand the flow of Node.js, Express.js, jade, etc..
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MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
...n you look at it, there's no real benefit. The disadvantage is unnecessary time wasted, the whole existence of this thread proves my point.
– Pacerier
Jan 29 '13 at 14:39
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How do I make and use a Queue in Objective-C?
... it is O(n). Probably fine for small queues, which is probably 99% of the time in mobile applications, but this would be a terrible solution for large data sets in time-critical situations. Again, not that you'd find that in most objective C situations.
– ThatGuy
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Display a float with two decimal places in Python
I have a function taking float arguments (generally integers or decimals with one significant digit), and I need to output the values in a string with two decimal places (5 -> 5.00, 5.5 -> 5.50, etc). How can I do this in Python?
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Can I recover a branch after its deletion in Git?
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Most of the time unreachable commits are in the reflog. So, the first thing to try is to look at the reflog using the command git reflog (which display the reflog for HEAD).
Perhaps something easier if the commit was part of a specific ...
How to count certain elements in array?
...le state. A developer who comes to read that later will have to spend some time to check what it does, and lose focus from their task. An abstraction is far superior: const count = countItems(array, 2); and the implementation details can be argued inside.
– joeytwiddle
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Ruby Hash to array of values
... Hash#values is not only simpler, but more efficient. Compare time ruby -e '(1..1000000).reduce({}){|h,i| h.store i,i; h}.values' with time ruby -e '(1..1000000).reduce({}){|h,i| h.store i,i; h}.map{|k,v| v}'
– jordanbtucker
Aug 2 '12 at 17:11
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Creating a new user and password with Ansible
...tate, declarative style. As a result you should be able to run it multiple times and get the same result, the same server state.
This all sounds great, but there are some nuances. One of them is managing users. "Desired state" means that every time you run a play that creates a user he will be upda...