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isDigit

isDigit

Oct 22, 2021

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Availability

This routine is available starting with SIL Engine™ 3.0.5.

Syntax

isDigit(str)

Description

Returns "true" if the provided argument str is a string containing only digits.

Parameters

Parameter name

Type

Required

Description

str

string

Yes

Specifies a character expression.

Return type

boolean (true/false)

Example

Example 1

wret = isDigit("2345");
print(wret);

Print true

Example 2

wret = isDigit("aaa2345f.ff");
print(wret);

Print false

Example 3

wret = isDigit("2.34");
print(wret);

Print false

See also