View All Attachments for Bug 152497

Attachment #267777
[HTML] Reduction	text/html	2015-12-21 21:00:23 PST	411 bytes	no flags	Details

<script>
var A = {
    foo: function() {
        return [1].some(function(x) {
            return this.getX() === 1
        }.bind(this))
    },

    bar: function() {
        return [1].some((x) => this.getX() === 1)
    },

    getX: function() {
        return 1;
    }
};
console.log(A.foo.call(A, "foo")); // Works well
console.log(A.bar.call(A, "bar")); // TypeError: this.getX is not a function
</script>