File size: 559 Bytes
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Object.defineProperty(Array.prototype, "find", {
value: function (predicate) {
if (this == null) {
throw new TypeError('"this" is null or not defined');
}
var o = Object(this);
var len = o.length >>> 0;
if (typeof predicate !== "function") {
throw new TypeError("predicate must be a function");
}
var thisArg = arguments[1];
var k = 0;
while (k < len) {
var kValue = o[k];
if (predicate.call(thisArg, kValue, k, o)) {
return kValue;
}
k++;
}
return undefined;
},
});
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