WMLScript Tutorial

WML Libraries

The format() function formats a value.

n = String.format(format, value)

Part

Description

The string returned from the function

format

Specifies how to format the value.

The format consists of three parts: %width.precision type

width - Optional. Specifies the minimum number of characters printed.

precision - Optional. Sets the precision of the output value. Can take one of the following values:

d (The minimum number of digits to print. Default is 1)
f (The number of digits after the decimal point. Default is 6)
s (The maximum number of characters to print. All characters are printed by default)

type - Required. Determines how to interpret the formatted value. Can take one of the following values:

d (Integer - the output value has nd digits)
f (Floating-Point - the output value has nf decimal digits)
s (String - Characters are printed to the end of the string or until the precision value is reached)

value

The value to be formatted

var b = String.format("%4.3d", 32);
var d = String.format("%3f", 10.1234);
var e = String.format("%2.2f", 2.3)

b = " 032"
d = "10.123"
e = "2.30"

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