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The keys have to be of integer (floating point numbers are truncated to integer) or string type, while values can be of arbitrary types, including other arrays and objects. The arrays are heterogeneous: a single array can have keys of different types. PHP's associative arrays can be used to represent trees, lists, stacks, queues, and other ...
modified_identifier_list «As «non_array_type««array_rank_specifier»» (multiple declarator); valid declaration statements are of the form Dim declarator_list , where, for the purpose of semantic analysis, to convert the declarator_list to a list of only single declarators:
strlen(string) Number of bytes C, PHP: string.length() C++ (STL) string.length: Cobra, D, JavaScript: string.length() Number of UTF-16 code units: Java (string-length string) Scheme (length string) Common Lisp, ISLISP (count string) Clojure: String.length string: OCaml: size string: Standard ML: length string: Number of Unicode code points ...
In addition to support for vectorized arithmetic and relational operations, these languages also vectorize common mathematical functions such as sine. For example, if x is an array, then y = sin (x) will result in an array y whose elements are sine of the corresponding elements of the array x. Vectorized index operations are also supported.
In JavaScript, there are 7 primitive data types: string, number, bigint, boolean, symbol, undefined, and null. [19] Their values are considered immutable . These are not objects and have no methods or properties ; however, all primitives except undefined and null have object wrappers .
The macro is unhygienic: it declares a new variable in the existing scope which remains after the loop. One foreach macro cannot be defined that works with different collection types (e.g., array and linked list) or that is extensible to user types. C string as a collection of char
Other tricks are needed to produce other letters – for example by casting the string 1e1000 into a number, which gives Infinity, which in turn makes the letter y accessible. [13] The following is a list of primitive values used as building blocks to produce the most simple letters.
(Signature strings) Yes — Efficient XML Interchange (EXI) W3C: XML, Efficient XML Yes Efficient XML Interchange (EXI) Format 1.0: Yes XML: XPointer, XPath: XML Schema: DOM, SAX, StAX, XQuery, XPath — Extensible Data Notation (edn) Rich Hickey / Clojure community Clojure: Yes Official edn spec: No Yes No No Clojure, Ruby, Go, C++, Javascript ...