omni-tools/src/pages/string/reverse/service.ts

import { reverseString } from 'utils/string';

export function stringReverser(
    input: string,
    multiLine: boolean,
    emptyItems: boolean,
    trim: boolean
) {
    let array: string[] = [];
    let result: string[] = [];

    // split the input in multiLine mode
    if (multiLine) {
        array = input.split('\n');
    }
    else {
        array.push(input);
    }

    // handle empty items
    if (emptyItems){
        array = array.filter(Boolean);
    }
    // Handle trim
    if (trim) {
        array = array.map(line => line.trim());
    }

    result = array.map(element => reverseString(element));
    return result.join('\n');
}