Name: is strictly

Type: operator

Syntax: <value> is strictly { nothing | a boolean | an integer | a real | a string | a binary string | an array }

Summary:

Evaluates to true if the actual type of <value> is the specified type.

Introduced: 8.0

OS: mac, windows, linux, ios, android

Platforms: desktop, server, mobile

Example:

"Hello World!" is strictly a string -- evaluates to true

Example:

1 + 200 is strictly an integer -- evaluates to true

Example:

(100 is 100) is strictly a boolean -- evaluates to true

Example:

the compress of "Hello World!" is strictly a binary string -- evaluates to true

Parameters:

value:

The expression which will be tested for its type.

Description:

Use the <is strictly> operator to determine the true type of a

value. The true type of a value is the representation which the engine

is currently holding for it, without performing any implicit type

coercion. The true type of a value can be one of the following:

* nothing: no value, typically seen as <empty>

* boolean: either true or false, typically seen as the result of a

comparison operator

* integer: a number with no fractional part

* real: a number with a fractional part

* string: a piece of text (sequence of characters)

* binary string: a sequence of bytes

* array: an associative array

The <is strictly> operator differs from <is a> in that it does not

perform any type coercion. For example, `x is an integer` would return

true if `x` is truly an integer or if it is a string which can be parsed

as an integer; whereas `x is strictly an integer` only returns true if

`x` is currently an integer (and not a string).

References: is not strictly (operator), is a (operator),

is not a (operator)