kriskowal/es5-shim — comment on commit 21c880db543b5d15fe01443a0d4bf1ec4dcf75dc
File:  line 0
By michaelficarra:

@tkissing: `1/0` always produces an `Infinity` value. Similar to `undefined` and `NaN`, `Infinity` is a writeable (in most cases) global variable that initially contains an `Infinity` value.