uilt_in">isNaN</span>(<span class="hljs-built_in">Number</span>(name))){
      <span class="hljs-keyword">return</span> <span class="hljs-string">"please enter text"</span>;
    }
  }
});</code></pre></div> </div></div><div class="qm-api-group qm-api-arg-group"><div class="qm-api-group-header qm-api-arg-group-header qm-header-font">Arguments</div><div class="qm-api-item qm-api-javascript-arg qm-api-collapsible"><div class="qm-api-collapsible-heading"><div class="qm-api-collapsible-toggle"><i class="qm-api-c