Aug 9, 2013 · $var and ${var} are the same, if var is the name of the variable. The braces are required when parameter is a positional parameter with more than one digit, or when parameter is followed by …

Aug 29, 2013 · 123 That description of /var is self-contradictory. /var contains things that are prone to change, such as websites, temporary files (/var/tmp) and databases. The name is an abbreviation of …

Apr 18, 2009 · Scoping rules The main difference is scoping rules. Variables declared by var keyword are scoped to the immediate function body (hence the function scope) while let variables are scoped …

Possible Duplicate: Objects vs arrays in Javascript for key/value pairs I have a variable in JavaScript which I am using like a hash. I can initialize it like: var selected = []; or var selec...

tldr; Although both var++ and ++var increment the variable they are applied to, the result returned by var++ is the value of the variable before incrementing, whereas the result returned by ++var is the …

Jun 27, 2016 · A program logs some message in directory /var/mobile/Containers/Data/Application on iPhone. Is there any way I can get access to this directory without jailbreaking iPhone?

As others have explained, var self = this; allows code in a closure to refer back to the parent scope. However, it's now 2018 and ES6 is widely supported by all major web browsers.

Apr 13, 2012 · Since var declares a variable in the current scope , there is no difference between declaring var inside window and not declaring it at all. The difference comes when you're not directly …

May 25, 2010 · C# is a strictly/strongly typed language. var was introduced for compile-time type-binding for anonymous types yet you can use var for primitive and custom types that are already known at …

Dec 15, 2011 · What is indirect expansion? What does $ {!var*} mean? Asked 14 years, 1 month ago Modified 10 months ago Viewed 80k times