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How do I ignore the initial load when watching model changes in AngularJS?
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119
+300
set a ...
How do I add files without dots in them (all extension-less files) to the gitignore file?
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121
You can try a combination similar to:
*
!/**/
!*.*
That gitignore exclusion rule (a negated...
Looking for a clear definition of what a “tokenizer”, “parser” and...
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171
A tokenizer breaks a stream of text into tokens, usually by looking for whitespace (tabs, spac...
Difference between doseq and for in Clojure
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168
The difference is that for builds a lazy sequence and returns it while doseq is for executing ...
How do you delete an ActiveRecord object?
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It's destroy and destroy_all methods, like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent associ...
Git pre-push hooks
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14
I would rather run the test in a pre-commit-hook. Because the change is already recorded when c...
Add to Array jQuery
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301
For JavaScript arrays, you use push().
var a = [];
a.push(12);
a.push(32);
For jQuery objects...
Formula to determine brightness of RGB color
...ightness? Luminance?
Luminance (standard for certain colour spaces): (0.2126*R + 0.7152*G + 0.0722*B) [1]
Luminance (perceived option 1): (0.299*R + 0.587*G + 0.114*B) [2]
Luminance (perceived option 2, slower to calculate): sqrt( 0.241*R^2 + 0.691*G^2 + 0.068*B^2 ) → sqrt( 0.299*R^2 + 0.587*G^...
Browsers' default CSS for HTML elements
...of all W3C HTML spec and vendor default CSS stylesheets can be found here
1. Default Styles for Firefox
2. Default Styles for Internet Explorer
3. Default Styles for Chrome / Webkit
4. Default Styles for Opera
5. Default Styles for HTML4 (W3C spec)
6. Default Styles for HTML5 (W3C spec)
Sampl...
How do I use a Boolean in Python?
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142
checker = None
if some_decision:
checker = True
if checker:
# some stuff
[Edit]
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