Query String Quotes

Ultimately, I try to think of my application’s main codebase as just stringing together various components and code from many sources. It just controls logic and flow. The real nitty-gritty is handled behind the scenes. This is why frameworks like Backbone are so important — they hide a lot of the details in the background and allow you to just focus on the flow and control of your application.

The next day, when America woke up to the confirmed reality of a black president, roughly 1 in 100 searches for “Obama” also included the epithet or “KKK” in the query string.

The function literal _.endsWith(_), used in the filesEnding method, means the same thing as: (fileName: String, query: String) => fileName.endsWith(query)

you could just write (fileName, query) => fileName.endsWith(query). Since the parameters are each used only once in the body of the function (i.e., the first parameter, fileName, is used first in the body, and the second parameter, query, is used second), you can use the placeholder syntax: _.endsWith(_). The first underscore is a placeholder for the first parameter, the file name, and the second underscore a placeholder for the second parameter, the query string.