The Javascript handler setPrototypeOf() method modifies the prototype of an object.
Syntax:
setPrototypeOf: function(target, prototype)
Parameters:
target: It represents the target object.
prototype: It represents the new prototype of the object. It can be null.
Return:
Returns true if the prototype of the object changed successfully otherwise returns false.
Example:
<!DOCTYPE html> <html> <body> <script> var handler = { abc:45} var proto = new Proxy(handler, { setPrototypeOf(a,b) { return newProto in a; } }); document.writeln('Value: '); document.writeln('abc' in proto); </script> </body> </html>