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Checking length of dictionary object [duplicate]
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What I do is use Object.keys() to return a list of all the keys and then get the length of that
Object.keys(dictionary).length
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Java `final` method: what does it promise?
...method can't be overridden (for object scope) or hidden (for static). This allows the original developer to create functionality that cannot be changed by subclasses, and that is all the guarantee it provides.
This means that if the method relies on other customizable components like non-public fie...
How to hide iOS status bar
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In the Plist add the following properties.
Status bar is initially hidden = YES
View controller-based status bar appearance = NO
now the status bar will hidden.
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No visible cause for “Unexpected token ILLEGAL”
... code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is thrown.
The same error is raised if, for example, you try to run...
Visual Studio 2012 Express is suddenly “incompatible with this version of Windows”?
...e same message on Visual Studio 2012 Premium (on PC where Windows 7 re-installed in last month) - the suggested fix was "Update for Microsoft Visual Studio 2012 (KB2781514)" which seems to have fixed it
www.microsoft.com/en-us/download/details.aspx?id=36020
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Android Studio: Android Manifest doesn't exists or has incorrect root tag
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Thanks. Hope all the answers keep helping people.
– axierjhtjz
Sep 26 '14 at 16:04
4
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Determine if an element has a CSS class with jQuery
...ass a className argument that contains whitespace, it will be matched literally against the collection's elements' className string. So if, for instance, you have an element,
<span class="foo bar" />
then this will return true:
$('span').hasClass('foo bar')
and these will return false:
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How to timeout a thread
... SSCCE:
package com.stackoverflow.q2275443;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public clas...
ImportError: No module named site on Windows
I am trying to install Python for the first time. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
What is cardinality in MySQL?
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Max cardinality: All values are unique
Min cardinality: All values are the same
Some columns are called high-cardinality columns because they have constraints in place (like unique) prohibiting you from putting the same value in every row. ...