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  1. What is the difference between $ {var}, "$var", and "$ {var}" in the ...

    Aug 9, 2013 · What the title says: what does it mean to encapsulate a variable in {}, "", or "{}"? I haven't been able to find any explanations online about this - I haven't been able to refer to them except for...

  2. linux - What goes in /var? - Stack Overflow

    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 …

  3. What is the difference between "let" and "var"? - Stack Overflow

    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 …

  4. javascript - Difference between var = {} and var ... - Stack Overflow

    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...

  5. java - The difference between ++Var and Var++ - Stack Overflow

    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 …

  6. Access files in /var/mobile/Containers/Data/Application without ...

    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?

  7. What underlies the `var self = this` JavaScript idiom?

    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.

  8. What is the purpose of the var keyword and when should I use it (or ...

    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 …

  9. CSS background-color value with var (--hexcode) and additional alpha ...

    Oct 19, 2023 · I have a button with a 2px border and transparent background. And I want to make the background-color become semi-transparent when hover, the hex color code is store in a var() with …

  10. c# - How to initialize var? - Stack Overflow

    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 …