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Hashing a dictionary?
...e hash():
hash(frozenset(my_dict.items()))
This is much less computationally intensive than generating the JSON string or representation of the dictionary.
UPDATE: Please see the comments below, why this approach might not produce a stable result.
...
Get the device width in javascript
...out the scaling set to 1:1 as a base ... var isMobile = window.matchMedia && window.matchMedia('(max-device-width: 960px)').matches || screen.width <= 960;
– Tracker1
Feb 27 '13 at 22:22
...
How to make a chain of function decorators?
...her object
scream = shout
# Notice we don't use parentheses: we are not calling the function,
# we are putting the function "shout" into the variable "scream".
# It means you can then call "shout" from "scream":
print(scream())
# outputs : 'Yes!'
# More than that, it means you can remove the old...
How do I unset an element in an array in javascript?
...ipt Arrays are not associative arrays like those you might be used to from PHP. If your "array key" is a string, you're no longer operating on the contents of an array. Your array is an object, and you're using bracket notation to access the member named <key name>. Thus:
var myArray = [];
m...
How do I escape double quotes in attributes in an XML String in T-SQL?
...
Wouldn't that be " in xml? i.e.
"hi "mom" lol"
**edit: ** tested; works fine:
declare @xml xml
set @xml = '<transaction><item value="hi "mom" lol"
ItemId="106" ItemType="2" in...
Ruby on Rails: how to render a string as HTML?
...
Or you can try CGI.unescapeHTML method.
CGI.unescapeHTML "<p>This is a Paragraph.</p>"
=> "<p>This is a Paragraph.</p>"
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improve th...
How to draw a dotted line with css?
... lot of cruft that is no longer required for modern browsers. I have personally tested the following CSS on all browsers as far back as IE8, and it works perfectly.
hr {
border: none;
border-top: 1px dotted black;
}
border: none must come first, to remove all the default border styling...
GitHub authentication failing over https, returning wrong email address
...es your password include special characters (like ! * ' ( ) ; : @ & = + $ , / ? # [ ])? They would need to be "percent-encoded" (en.wikipedia.org/wiki/Percent-encoding).
– VonC
Jan 4 '14 at 0:44
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How to set the text color of TextView in code?
...n set a text color by the textColor attribute, like android:textColor="#FF0000" . But how do I change it by coding?
35 A...
Converting an array of objects to ActiveRecord::Relation
... class the objects are, which you probably do)
MyModel.where(id: arr.map(&:id))
You have to use where though, it's a useful tool which you shouldn't be reluctant to use. And now you have a one-liner converting an array to a relation.
map(&:id) will turn your array of objects to an array ...