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How to convert boost path type to string?
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make arrayList.toArray() return more specific types
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How to increment a pointer address and pointer's value?
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How to find the key of the largest value hash?
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Can't use modulus on doubles?
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MysticialMysticial
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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edited Apr 26 '15 at 22:12
answered Mar 27 '11 at 4:01
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Float vs Decimal in ActiveRecord
... you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270211815834045" # not "0.1"!
whereas if you just do
irb:002:0> (1.0/10).to_s
=> "0.1" # the interprer rounds the number for you
So if you are dealing with small fractions, like compounding interests...
Drawing an image from a data URL to a canvas
...var img = new Image;
img.src = strDataURI;
The drawImage() method of HTML5 Canvas Context lets you copy all or a portion of an image (or canvas, or video) onto a canvas.
You might use it like so:
var myCanvas = document.getElementById('my_canvas_id');
var ctx = myCanvas.getContext('2d');
var img...
How do I find all installed packages that depend on a given package in NPM?
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You're looking for https://docs.npmjs.com/cli/ls
For example, to see which packages depend on ...