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Description

Converts the first character of a string to lowercase while leaving the rest of the string unchanged.

Syntax

Parameters

Returns

Type: string The input string with its first character converted to lowercase. Returns null if the input is null, and empty string if input is empty.

Examples

Example 1: Basic Usage

Output:

Example 2: Processing Field Names

Notes

  • Returns null for null input
  • Returns empty string for empty string input
  • Only affects the first character
  • Does not change the case of subsequent characters

See Also

Frequently Asked Questions

It converts only the first character of a string to lowercase, leaving all other characters unchanged.
It is useful for converting PascalCase identifiers to camelCase-style keys, e.g., turning 'FirstName' into 'firstName'.