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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 ...
PER Aligned: a fixed number of bits if the integer type has a finite range and the size of the range is less than 65536; a variable number of octets otherwise; OER: 1, 2, or 4 octets (either signed or unsigned) if the integer type has a finite range that fits in that number of octets; a variable number of octets otherwise
ECMA Array - 0x08 (32-bit entry count) Object End - 0x09 (preceded by an empty 16-bit string length) Strict Array - 0x0a (32-bit entry count) Date - 0x0b (Encoded as IEEE 64-bit double-precision floating point number with 16-bit integer time zone offset) Long String - 0x0c (32-bit integer string length with UTF-8 string)
Array: Contains a list of data. Though ActionScript 3 is a strongly typed language, the contents of an Array may be of any type and values must be cast back to their original type after retrieval (support for typed Arrays has recently been added with the Vector class). Date: A date object containing the date/time digital representation.
Based on JavaScript 1.2 as implemented in Netscape Navigator 4.0. [2] Added regular expressions, better string handling, new control statements, try/catch exception handling, tighter definition of errors, formatting for numeric output, and other enhancements Mike Cowlishaw: 4 Abandoned (last draft 30 June 2003) ECMAScript 4 (ES4)
count(string) Number of characters Swift (1.2) countElements(string) Number of characters Swift (1.0–1.1) string.len(string) (string):len() #string: Lua: string size: Smalltalk: LEN(string) LEN_TRIM(string) Fortran: StringLength[string] Mathematica «FUNCTION» LENGTH(string) or «FUNCTION» BYTE-LENGTH(string) number of characters and number ...
datetime w/o time zone (long integer number of milliseconds since the Unix epoch) byte array (for arbitrary binary data) Boolean (true and false) null; BSON object; BSON array; JavaScript code; MD5 binary data; Regular expression (Perl compatible regular expressions ("PCRE") version 8.41 with UTF-8 support) [6]
For types 2 (byte string) and 3 (text string), the count is the length of the payload. For types 4 (array) and 5 (map), the count is the number of items (pairs) in the payload. For type 6 (tag), the payload is a single item and the count is a numeric tag number which describes the enclosed item.