The method Reflect.construct
helps construct a new instance from a constructor function given an array of arguments. It has a functionality similar to the new
operator:
function Employee (firstname, lastname) {
this.firstname = firstname;
this.lastname = lastname;
}
let employee1 = new Employee("John", "Doe");
let employee2 = Reflect.construct(Employee, ["Jane", "Doe"]);
// This can also be done with the spread operator:
let args = ["John", "Smith"];
let employee3 = new Employee(...args);
It is generally useful to have an alternative for the new
operator, specially when we have an array of arguments. Even though this particular problem has been alleviated in ES6 with the introduction of the spread operator(...
). (See the last line in the example code above.)
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thanks for sharing
Good work.. You are writing nice and doing good for community.. I always told that computer is not my subject but always happy to see good work here.. And respect good teachers also
useful post on construct.
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keep it up dear
@ghasemkiani
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بهترین لحظات را براتون آرزو میکنم
Helpful post. thanks for the example.
educative
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پس تعریف شی بصورت بالا انجام میشه در
reflect
ممنون
Wow amazing programming...thaNks for sharing...
Good information about reflect construct in javascript. You are guiding us like a teacher
Thank you very much @ghasemkiani
That's a great javascript...I like this post...
Informative content, thanks for sharing this post.
Thanks for sharing programming .
I appreciate this technology .
Best of luck.
thank you D:@ghasemkiani
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This very nice post i appreciate your technology thanks for sharing ..Best of luck ...resteemit..
I like this post..
Resteemit done...
wow! amazing programming..thanks for shairing@ghasemkiani. have a nice day
Resteemit done..Sir..
come on my blog
I like this programming..Keep it up..
good post, thanks for sharing....
you are really good at java programming
Informative content, thanks for sharing this post.
@ghasemkiani Helpful post. Good for beginners.
will be using Reflect a lot more, thanks for the post
thanks for the post, do you have any idea about browser compatibility?
Thanks, I am learning javascript in codecademy but I am beginner