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JavaScript object: access variable property by name as string [duplicate]

... You don't need a function for it - simply use the bracket notation: var side = columns['right']; This is equal to dot notation, var side = columns.right;, except the fact that right could also come from a variable, functio...
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How do I count unique values inside a list

So I'm trying to make this program that will ask the user for input and store the values in an array / list. Then when a blank line is entered it will tell the user how many of those values are unique. I'm building this for real life reasons and not as a problem set. ...
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Django dynamic model fields

... As of today, there are four available approaches, two of them requiring a certain storage backend: Django-eav (the original package is no longer mantained but has some thriving forks) This solution is based on Entity Attribute Valu...
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Bootstrap Datepicker - Months and Years Only

I am using bootstrap datepicker and my code is like following, Demo of the code on jsfiddle 8 Answers ...
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Transaction isolation levels relation with locks on table

...tand the lock each transaction isolation takes on the table For example, you have 3 concurrent processes A, B and C. A starts a transaction, writes data and commit/rollback (depending on results). B just executes a SELECT statement to read data. C reads and updates data. All these process work on ...
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Is there a function in python to split a word into a list? [duplicate]

Is there a function in python to split a word into a list of single letters? e.g: 7 Answers ...
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pg_config executable not found

I am having trouble installing psycopg2. I get the following error when I try to pip install psycopg2 : 43 Answers ...
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Python Graph Library [closed]

I'm writing a python application that will make heavy use of a graph data structure. Nothing horribly complex, but I'm thinking some sort of graph/graph-algorithms library would help me out. I've googled around, but I don't find anything that particularly leaps out at me. ...
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What is the difference between .yaml and .yml extension? [duplicate]

I read them on YAML-wikipedia but not really understood the main difference between them. I saw there are someone using .yaml extension, however, Symfony2 use .yml extension. ...
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Big O, how do you calculate/approximate it?

Most people with a degree in CS will certainly know what Big O stands for . It helps us to measure how well an algorithm scales. ...