This chapter discusses JavaScript's basic grammar, variable declarations, data types and literals.

An Iterator object is an object that conforms to the iterator protocol by providing a next() method that returns an iterator result object. All built-in iterators inherit from the Iterator class. The Iterator class provides a [Symbol.iterator]() method that returns the iterator object itself, making the iterator also iterable. It also provides some helper methods for working with iterators.

The NaN global property is a value representing Not-A-Number.

The edgeMode attribute determines how to extend the input image as necessary with color values so that the matrix operations can be applied when the kernel is positioned at or near the edge of the input image.

The bitwise AND (&) operator returns a number or BigInt whose binary representation has a 1 in each bit position for which the corresponding bits of both operands are 1.

The Function object provides methods for functions. In JavaScript, every function is actually a Function object.

The <text> SVG element draws a graphics element consisting of text. It's possible to apply a gradient, pattern, clipping path, mask, or filter to <text>, like any other SVG graphics element.

The Uint8ClampedArray typed array represents an array of 8-bit unsigned integers clamped to 0–255. The contents are initialized to 0 unless initialization data is explicitly provided. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

# # "Tax the rat farms." - Lord Vetinari # # The following hash values are used: # sign : "+", "-", "+inf", "-inf", or "NaN" # _d : denominator # _n : numerator (value = _n/_d) # accuracy : accurac...

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