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JavaScript

Posted by Aliayub Ali
Aliayub Ali
3,495 Points

Can anyone help me with this code please.

Here is the code and break it down please piece by piece

var words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];

const result = words.filter(word => word.length > 6);

console.log(result); // expected output: Array ["exuberant", "destruction", "present"]

question here what is that word => word.length>6; is that arrow function. line 2

1 Answer

Alexander Neldefors
Alexander Neldefors
7,400 Points
Alexander Neldefors
Alexander Neldefors
7,400 Points

Filter takes a predicate (something that returns True or False), you can pass in a function reference or an arrow function (usually called lambda function) to filter. So what it does is that it runs the arrow function on every item in the list (where "word" resembles the single item) and returns a new list where the function (in this case "word.length => 6") returns true.