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The concept was introduced in the B programming language circa 1969 by Ken Thompson. [16] Thompson went a step further by inventing the ++ and -- operators, which increment or decrement; their prefix or postfix position determines whether the alteration occurs before or after noting the value of the operand.
A currency symbol or currency sign is a graphic symbol used to denote a currency unit. Usually it is defined by a monetary authority, such as the national central bank for the currency concerned. A symbol may be positioned in various ways, according to national convention: before, between or after the numeric amounts: €2.50, 2,50€ and 2 50.
The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ($ or depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso".
The symbol is usually placed before the value it represents, for example: ¥50, or JP¥50 and CN¥50 when disambiguation is needed. [ a ] When writing in Japanese and Chinese, the Japanese kanji and Chinese character is written following the amount, for example 50円 in Japan, and 50元 or 50圆 in China.
Learning JavaScript Design Patterns – reusable solutions for commonly occurring problems; Programming with JavaScript - an advanced JavaScript WikiBook by JonMark Perry; Speaking JavaScript: An In-depth Guide for Programmers – assumes you already know another object-oriented programming language. Covers ECMAScript 5.
Almost everything is an expression in CoffeeScript, for example, if, switch and for expressions (which have no return value in JavaScript) return a value. As in Perl and Ruby, these control statements also have postfix versions; for example, if can also be written in consequent if condition form.
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var x1 = 0; // A global variable, because it is not in any function let x2 = 0; // Also global, this time because it is not in any block function f {var z = 'foxes', r = 'birds'; // 2 local variables m = 'fish'; // global, because it wasn't declared anywhere before function child {var r = 'monkeys'; // This variable is local and does not affect the "birds" r of the parent function. z ...