title: How to find out object keys are string or Array in javascript
body: <p>This is my JSON,Now i want to find out the properties are array or string .</p>
  
  <p>{
      "data":[</p>
  
  <pre><code>{ 
  
       "name": "my Service", 
       "description":"   comes once here  " , 
       "tables":{ "tables":["rajaaaaa ","rajuuuuu","mommmm"]},
       "imgUrl":"../assets/images/nmpm.jpg"
  
  }, 
  
   { 
       "name": "my Service1", 
       "description":"   comes once here  " , 
       "tables":{ "tables":["rajaaaaa ","rajuuuuu","mommmm"]},
       "imgUrl":"../assets/images/nmpm.jpg"
  },
  
   { 
  
       "name": "my Service2", 
       "description":"   comes once here  " , 
       "tables":{ "tables":["rajaaaaa ","rajuuuuu","mommmm"]},
       "imgUrl":"../assets/images/nmpm.jpg"
  },
  
   { 
  
       "name": "my Service3", 
       "description":"   comes once here  " , 
       "tables":{ "tables":["rajaaaaa ","rajuuuuu","mommmm"]},
       "imgUrl":"../assets/images/nmpm.jpg"
  }
  </code></pre>
  
  <p>]
  }</p>
  
  <p>Now how to find out the properties are string or array.</p>