Function replaceAt

Replaces a substring at a specific index with a new string

Source

export const replaceAt = function (str: string, index: number, length: number, replacement: string): string {
    return str.substring(0, index) + replacement + str.substring(index + length);
};
  • replaceAt(
        str: string,
        index: number,
        length: number,
        replacement: string,
    ): string

    Parameters

    • str: string

      The original string

    • index: number

      The starting index for replacement

    • length: number

      The number of characters to replace

    • replacement: string

      The replacement string

    Returns string

    A new string with the replacement applied

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