| if performance? and performance.now |
| module.exports = -> performance.now() |
| else if process? and process.hrtime |
| module.exports = -> (getNanoSeconds() - nodeLoadTime) / 1e6 |
| hrtime = process.hrtime |
| getNanoSeconds = -> |
| hr = hrtime() |
| hr[0] * 1e9 + hr[1] |
| moduleLoadTime = getNanoSeconds() |
| upTime = process.uptime() * 1e9 |
| nodeLoadTime = moduleLoadTime - upTime |
| else if Date.now |
| module.exports = -> Date.now() - loadTime |
| loadTime = Date.now() |
| else |
| module.exports = -> new Date().getTime() - loadTime |
| loadTime = new Date().getTime() |
