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What is the difference between typeof and instanceof and when should one be used vs. the other?
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Use instanceof for custom types:
var ClassFirst = function () {};
var ClassSecond = function () {};
var instance = new ClassFirst();
typeof instance; // object
typeof instance == 'ClassFirst'; // false
instance instanceof Object; // true
instance...
What algorithm does Readability use for extracting text from URLs?
For a while, I've been trying to find a way of intelligently extracting the "relevant" text from a URL by eliminating the text related to ads and all the other clutter.After several months of researching, I gave it up as a problem that cannot be accurately determined. (I've tried different ways but ...
How do I make curl ignore the proxy?
How do I make curl ignore the proxy?
Setting $NO_PROXY doesn't seem to work for me.
12 Answers
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How to define a function in ghci across multiple lines?
I'm trying to define any simple function that spans multiple lines in ghci, take the following as an example:
7 Answers
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Changing an element's ID with jQuery
I need to change an element's ID using jQuery.
8 Answers
8
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Importing variables from another file?
How can I import variables from one file to another?
8 Answers
8
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Post-install script with Python setuptools
Is it possible to specify a post-install Python script file as part of the setuptools setup.py file so that a user can run the command:
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How to put spacing between TBODY elements
...t;style>
table {
border-collapse: collapse;
}
table tbody {
border-top: 15px solid white;
}
</style>
<table>
<tfoot>
<tr><td>footer</td></tr>
</tfoot>
<tbody>
<tr><td>Body 1</td></tr>
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Devise - How do I forbid certain users from signing in?
...ate a column called is_active for the User model.
Then add the code below to the User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the model
def active_for_authentication?
#remember to call the super
#then put our own check t...
What is the quickest way to HTTP GET in Python?
What is the quickest way to HTTP GET in Python if I know the content will be a string? I am searching the documentation for a quick one-liner like:
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