StartsWith

Tests whether a string begins with a specified prefix using case-sensitive comparison.

Syntax

StartsWith(source, prefix)

Parameters

• source (string): The source string to test
• prefix (string): The prefix to search for

Returns

• boolean: True if the source string begins with the prefix

Description

Performs case-sensitive comparison using ordinal string comparison semantics for consistent behavior.

Examples

var result1 = StartsWith("Hello World", "Hello")    # Returns true

var result2 = StartsWith("filename.txt", "file")    # Returns true

var result3 = StartsWith("Hello", "hello")          # Returns false (case-sensitive)

var result4 = StartsWith("test", "testing")         # Returns false