jsdataframe.js
function resolveIntIdx(inputInt, maxLen, checkBounds) {
  if (isUndefined(checkBounds)) {
    checkBounds = true;
  }
  if (!Number.isInteger(inputInt)) {
    throw new Error('expected integer selector for integer indexing ' +
      'but got non-integer: ' + inputInt);
  }
  var result = inputInt < 0 ? maxLen + inputInt : inputInt;
  if (checkBounds && (result < 0 || result >= maxLen)) {
    throw new Error('integer index out of bounds');
  }
  return result;
}
function resolveIntIdx(inputInt, maxLen, checkBounds) {
  if (isUndefined(checkBounds)) {
    checkBounds = true;
  }
  if (!Number.isInteger(inputInt)) {
    throw new Error('expected integer selector for integer indexing ' +
      'but got non-integer: ' + inputInt);
  }
  var result = inputInt < 0 ? maxLen + inputInt : inputInt;
  if (checkBounds && (result < 0 || result >= maxLen)) {
    throw new Error('integer index out of bounds');
  }
  return result;
}
function resolveIntIdx ( inputInt , maxLen , checkBounds ) { if ( isUndefined ( checkBounds ) ) { checkBounds = true ; } if ( ! Number . isInteger ( inputInt ) ) { throw new Error ( 'expected integer selector for integer indexing ' + 'but got non-integer: ' + inputInt ) ; } var result = inputInt < 0 ? maxLen + inputInt : inputInt ; if ( checkBounds && ( result < 0 || result >= maxLen ) ) { throw new Error ( 'integer index out of bounds' ) ; } return result ; }
Uses 'maxLen' to compute the integer index for 'inputInt' or throws an error if invalid.  'checkBounds' is true by default but if false, the resulting integer index won't be checked.
Uses maxLen to compute the integer index for inputInt or throws an error if invalid . checkBounds is true by default but if false the resulting integer index won t be checked .