Function that tests whether a string can be used as a variable name

isValidVarName.js

function isValidVarName(varName) {
  try {
    Function(varName.replace(/[\s\xA0,\/]|^$/g, '.'), '');
    return true;
  }
  catch (e) {
    return false;
  }
}

function test(str) {
  console.log({ varName: str, isValid: isValidVarName(str) });
}