type check object javascript code example
Example 1: javascript detect if object is date
var myDate=new Date();
if(myDate instanceof Date){
//im a hot Date
}
Example 2: type of javascript
//typeof() will return the type of value in its parameters.
//some examples of types: undefined, NaN, number, string, object, array
//example of a practical usage
if (typeof(value) !== "undefined") {//also, make sure that the type name is a string
//execute code
}