JavaScript For...In Statement
The for...in statement loops through the properties of an object.
Syntax
Note: The code in the body of the for...in loop is executed once for each property.Code:for (variable in object) { code to be executed }
Example
Looping through the properties of an object:
Try it yourself »Code:var person={fname:"John",lname:"Doe",age:25}; for (x in person) { document.write(person[x] + " "); }