Run results for: a+a vs 2*a vs a<<1

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0

Browser: Firefox 49

Operating system: Windows 7

Device Platform: Other

Date tested: 8 years ago

Script Preparation code:

var a=5559486755555,a2=0;

Tests: