Function replaceAtPosition

src/util.js:142–152

(position, replace, replaceWith, code)

 * @return {string}
 */
export function replaceAtPosition(position, replace, replaceWith, code) {
    const subString = code.substr(position);

    // This is needed to fix an issue where $ signs do not render in the
    // highlighted code
    //
    // @see https://github.com/ccampbell/rainbow/issues/208
    replaceWith = replaceWith.replace(/\$/g, '$$$$');

    return code.substr(0, position) + subString.replace(replace, replaceWith);
}

/**
 * Creates a usable web worker from an anonymous function