How to use

lastIndexOf

function

in

LoDashStatic

decompress(files, next) {
    if (!_.isArray(files)) {
      const fromFile = this.server.path(files);
      const toDir = fromFile.substring(0, _.lastIndexOf(fromFile, '/'));
      this.systemDecompress(fromFile, toDir, next);
    } else if (_.isArray(files)) {
      Async.eachLimit(files, 1, (file, callback) => {
        const fromFile = this.server.path(file);
        const toDir = fromFile.substring(0, _.lastIndexOf(fromFile, '/'));
        this.systemDecompress(fromFile, toDir, callback);
      }, next);
    } else {
      return next(new Error('Invalid datatype passed to decompression function.'));
    }
  }

_parseDeclaration(args) {
    let def = args.def;
    const title = args.title;
    def = def.trim();
    assert(def, `Invalid ${ title }: ${ def }`);
    let pos = _.lastIndexOf(def, '*');
    if (pos === -1) {
      pos = _.lastIndexOf(def, ' ');
    }
    if (pos === -1) {
      pos = def.length - 1;
    }
    let part1 = def.substr(0, pos + 1).trim();
    let part2 = def.substr(pos + 1).trim();
    if (!part1 && part2) {
      part1 = part2;
      part2 = null;
    }
    assert(part1, `Invalid ${ title }: ${ def }`);
    if (!part2 && !args.defaultName) {
      assert(false, `${ title } declaration's name expected.`);
    }
    return {
      name: part2 || args.defaultName,
      type: this._makeRef(part1, args.isInterface)
    };
  }

def = def.trim();
assert(def, 'Invalid ' + title + ': ' + def);
var pos = _.lastIndexOf(def, '*');
if (pos === -1) {
  pos = _.lastIndexOf(def, ' ');