I'm trying to use ES6 arrow function with .filter
to return adults (Jack & Jill). It appears I cannot use an if statement.
What do I need to know in order to do this in ES6?
var family = [{"name":"Jack", "age": 26},
{"name":"Jill", "age": 22},
{"name":"James", "age": 5 },
{"name":"Jenny", "age": 2 }];
let adults = family.filter(person => if (person.age > 18) person); // throws error
(8:37) SyntaxError: unknown: Unexpected token (8:37)
|let adults = family.filter(person => if (person.age > 18) person);
My working ES5 example:
let adults2 = family.filter(function (person) {
if (person.age > 18) { return person; }
});
This question is related to
javascript
ecmascript-6
higher-order-functions
You can't implicitly return with an if
, you would need the braces:
let adults = family.filter(person => { if (person.age > 18) return person} );
It can be simplified though:
let adults = family.filter(person => person.age > 18);
Here is my solution for those who use hook
; If you are listing items in your grid and want to remove the selected item, you can use this solution.
var list = data.filter(form => form.id !== selectedRowDataId);
setData(list);
As simple as you can use const adults = family.filter(({ age }) => age > 18 );
const family =[{"name":"Jack", "age": 26},_x000D_
{"name":"Jill", "age": 22},_x000D_
{"name":"James", "age": 5 },_x000D_
{"name":"Jenny", "age": 2 }];_x000D_
_x000D_
const adults = family.filter(({ age }) => age > 18 );_x000D_
_x000D_
console.log(adults)
_x000D_
return arrayname.filter((rec) => rec.age > 18)
Write this in the method and call it
Source: Stackoverflow.com