What is the yield keyword in JavaScript?

The yield keyword is used in JavaScript to pause and resume a generator function. The value of the expression is returned to the generator's caller.

Here are the Examples −

function* displayRank () {    var selPlayers= [1, 2, 3, 4];    for (var a = 0; a < selPlayers.length; a++) {       yield selPlayers[i];    } }

After defining a generator function, use it like the following. H
Here displayRank() is the generator function −

var rank = displayRank(); // // value: 1 alert(rank.next()); // value: 2 alert(rank.next()); // value: 3 alert(rank.next()); // value: 4 alert(rank.next()); // value: undefined alert(rank.next());