javascript typeo code example

Example 1: node js check type of variable

if (typeof i != "number") {
    console.log('This is not number');
}

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
}