kibana-123/src/ui/public/utils/string_utils.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

export class StringUtils {

  /**
   * Returns a version of the string with the first letter capitalized.
   * @param str {string}
   * @returns {string}
   */
  static upperFirst(str) {
    return str ? str.charAt(0).toUpperCase() + str.slice(1) : '';
  }
}