number

Turns text, true/false or nothing into a number, or stops with an error.

Keyboard Maestro: Calculate

Details #

number(value) takes exactly one argument and returns a number.

A number stays a number.
Text that is wholly a decimal number (optional sign, point or e exponent, surrounding spaces allowed) becomes that number: number("42") is 42, number(" 1.5 ") is 1.5.
true is 1, false is 0, and nothing (null) is 0.
Anything else is an error: can't turn "abc" into a number.

Takes 1 argument. {{ number(text) }}

number("42") + 1

→ 43

number(input) * 2

→ 42

Sample variable	Value
`input`	`21`

number(flag)

→ 1

Sample variable	Value
`flag`	`true`

"5" + 1 is the text 51, not 6. Use number("5") + 1. Subtraction, multiplication, division and % convert numeric text on their own.