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ES6 - handler.get()
The following example defines a class Student with a constructor and a custom getter method, fullName. The custom getter method returns a new string by concatenating the firstName and lastName. The program creates a proxy and defines a handler object intercepts whenever the propertiesfirstName, lastName and fullName are accessed. The property values will be returned in uppercase.
<script> class Student{ constructor(firstName,lastName){ this.firstName = firstName this.lastName = lastName } get fullName(){ return `${this.firstName} : ${this.lastName}` } } const handler = { get: function(target,property){ Reflect.get(target,property).toUpperCase(); } } const s1 = new Student("Tutorials","Point") const proxy = new Proxy(s1,handler) console.log(proxy.fullName) console.log(proxy.firstName) console.log(proxy.lastName) </script>
The output of the above code will be as follows −
TUTORIALS : POINT TUTORIALS POINT
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