textarea

input

function copy(part1, part2) {

    // Creates textarea element 
    var textarea = document.createElement('textarea');

    // Puts the text into the textarea with breaklines
    textarea.value = part1 + "\n\n" + part2

    // Adds the element to the DOM
    document.body.appendChild(textarea);

    // Selects the text that we want to copy
    textarea.select();

    // Copies the selected text clipboard
    var result = document.execCommand('copy');

    // Removes the element from the DOM because we no longer need it
    document.body.removeChild(textarea);
    return result;
}