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Big O of JavaScript arrays
Arrays in JavaScript are very easy to modify by adding and removing items. It somewhat masks the fact that most languages arrays are fixed-size, and require complex operations to resize. It seems that JavaScript makes it easy to write poorly performing array code. This leads to the question:
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ExecJS and could not find a JavaScript runtime
...sers
I'm on Ubuntu 11.04 and had similar issues. Installing Node.js fixed it.
As of Ubuntu 13.04 x64 you only need to run:
sudo apt-get install nodejs
This will solve the problem.
CentOS/RedHat Users
sudo yum install nodejs
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Check if one list contains element from the other
I have two lists with different objects in them.
12 Answers
12
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How to pass parameters in $ajax POST?
...parameters, but if I set them directly to the url using /?field1="hello" it works.
9 Answers
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Generate 'n' unique random numbers within a range [duplicate]
I know how to generate a random number within a range in Python.
4 Answers
4
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Stop “developer tools access needs to take control of another process for debugging to continue” ale
...roject in the simulator for the first time after logging in, I'm prompted with the following two alerts:
9 Answers
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Create nice column output in python
I am trying to create a nice column list in python for use with commandline admin tools which I create.
18 Answers
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Converting BigDecimal to Integer
...Decimal.
I have another API method to which I need to pass that number but it accepts Integer as parameter. I cannot change return types or variable types of both methods.
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How to generate all permutations of a list?
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Starting with Python 2.6 (and if you're on Python 3) you have a standard-library tool for this: itertools.permutations.
import itertools
list(itertools.permutations([1, 2, 3]))
If you're using an older Python (<2.6) for some re...
How to version control a record in a database
... a FOO table that admins and users can update. Most of the time you can write queries against the FOO table. Happy days.
Then, I would create a FOO_HISTORY table. This has all the columns of the FOO table. The primary key is the same as FOO plus a RevisionNumber column. There is a foreign key ...