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Safest way to convert float to integer in python?
...take a floating point number and return the nearest integer below or above it. However these functions return the answer as a floating point number. For example:
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What's the Point of Multiple Redis Databases?
...e of the keys command on one specific kind of data, and wanted to separate it to make that faster.
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What is the dual table in Oracle?
I've heard people referring to this table and was not sure what it was about.
14 Answers
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How to perform case-insensitive sorting in JavaScript?
...have an array of strings I need to sort in JavaScript, but in a case-insensitive way. How to perform this?
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git stash -> merge stashed change with current changes
...changes to said branch. What I want is a way to merge my stashed changes with the current changes.
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Rotating a two-dimensional array in Python
In a program I'm writing the need to rotate a two-dimensional array came up. Searching for the optimal solution I found this impressive one-liner that does the job:
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“Eliminate render-blocking CSS in above-the-fold content”
I've been using Google PageSpeed insights to try and improve my site's performance, and so far it's proven extremely successful. Things like deferring scripts worked beautifully, since I already had an in-house version of jQuery's .ready() to defer scripts until the page had loaded fully, all I ha...
How can I check if multiplying two numbers in Java will cause an overflow?
...plyExact, Math.addExact etc. for ints and long. These throw an unchecked ArithmeticException on overflow.
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What is the best way to test for an empty string in Go?
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Both styles are used within the Go's standard libraries.
if len(s) > 0 { ... }
can be found in the strconv package: http://golang.org/src/pkg/strconv/atoi.go
if s != "" { ... }
can be found in the encoding/json package: http://golang.org/...
Python memoising/deferred lookup property decorator
... these attributes to have their database lookups be deferred, ie. not be initialised in the constructor but only upon first read. These attributes do not change over the lifetime of the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. H...