polyfill-service
Version:
A polyfill combinator
25 lines (20 loc) • 579 B
JavaScript
Array.prototype.every = function every(callback) {
if (this === undefined || this === null) {
throw new TypeError(this + ' is not an object');
}
if (typeof callback !== 'function') {
throw new TypeError(callback + ' is not a function');
}
var
object = Object(this),
scope = arguments[1],
arraylike = object instanceof String ? object.split('') : object,
length = Number(arraylike.length) || 0,
index = -1;
while (++index < length) {
if (index in arraylike && !callback.call(scope, arraylike[index], index, object)) {
return false;
}
}
return true;
};