bash if false returns true instead of false -- why

Why does the following output True binsh if false then echo True else echo False fi This will always output True even though the condition would seem to

Check whether an input string contains a number in javascript

My end goal is to validate an input field The input may be either alphabetic or

Common xlabelylabel for matplotlib subplots

I have the following plot figax pltsubplots52sharexTrueshareyTruefigsizefigsize and now I would like to give this plot common xaxis labels and yaxis labels

Concurrentfutures vs Multiprocessing in Python 3

Python 32 introduced Concurrent Futures which appear to be some advanced combination of the older threading and multiprocessing modules What are the advantages

Convert string to symbol-able in ruby

Symbols are usually represented as such bookauthortitle but if I have a string Book Author Title is there a built in way in railsruby to convert it into a

Django queries when to use id vs pk

When writing django queries one can use both idpk as query parameters Objectobjectsgetid1 Objectobjectsgetpk1 I know that pk stands for Primary Key and is just

Entity Framework 6 Code first Default value

is there elegant way to give specific property a default value Maybe by DataAnnotations something like DefaultValuetrue public bool Active get set Thank

Failed to execute createObjectURL on URL

Display Below error in Safari Failed to execute createObjectURL on URL No function was found that matched the signature provided My Code is function

Finding child element of parent with JavaScript

What would be the most efficient method to find a child element with class or ID of a particular parent element using pure javascript only No jQuery or other