Wrappers and the function call chains that follow don't exist randomly throughout our code. The next chapter covers this topic in more depth, so consider this as a teaser. So far, we've only looked at chains as they're constructed and executed in the same statement. However, if we're going through all the trouble of designing a call chain that serves a general purpose, wouldn't it be good not to keep assembling that chain? Let's design the chain with the following code:
function best(coll, prop, count) {
return _(coll)
.sortBy(prop)
.takeRight(count);
}
var collection = [
{ name: 'Mathew', score: 92 },
{ name: 'Michele', score: 89 },
{ name: 'Joe', score: 74 },
{ name: 'Laurie', score: 83 }
];
var bestScore = best(collection, 'score', 2);
bestScore.value();
// →
// [
// { name: "Michele", score": 89 },
// { name: "Mathew", score: 92 }
// ]
bestScore.reverse().value();
// →
// [
// { name: "Michele", score:...