Merge 2f89c52 into ac05e17

README.md

@@ -15,7 +15,7 @@ $ npm install @kikobeats/time-span --save
 
 ```js
 const { setTimeout } = require('timers/promises')
-const timeSpan = require('@kikobeats/time-span')
+const timeSpan = require('@kikobeats/time-span')()
 
 const duration = timeSpan()
 await setTimeout(5000)
@@ -26,7 +26,11 @@ console.log(duration()) // => 5001.870375
 It also accepts a `format` function:
 
 ```js
-const duration = timeSpan({ format: n => `${Math.round(n)}ms`})
+const timeSpan = require('@kikobeats/time-span')({
+  format: n => `${Math.round(n)}ms`
+})
+
+const duration = timeSpan()
 await setTimeout(5000)
 console.log(duration()) // => 5000ms
 ```

index.js

@@ -1,4 +1,5 @@
 module.exports =
-  ({ start = process.hrtime.bigint(), format = n => n } = {}) =>
-    () =>
-      format(Number(process.hrtime.bigint() - start) / 1e6)
+  ({ format = n => n } = {}) =>
+    (start = process.hrtime.bigint()) =>
+      () =>
+        format(Number(process.hrtime.bigint() - start) / 1e6)

test/index.js

@@ -2,10 +2,10 @@
 
 const { setTimeout } = require('timers/promises')
 const test = require('ava')
-
-const timeSpan = require('..')
+const createTimeSpan = require('..')
 
 test('default options', async t => {
+  const timeSpan = createTimeSpan()
   const duration = timeSpan()
   await setTimeout(100)
   const end = duration()
@@ -15,14 +15,18 @@ test('default options', async t => {
 test('pass `start`', async t => {
   const start = process.hrtime.bigint()
   await setTimeout(100)
-  const duration = timeSpan({ start })
+  const timeSpan = createTimeSpan()
+  const duration = timeSpan(start)
   await setTimeout(100)
   const end = duration()
   t.true(end > 200 && end < 200 + 200 * 0.02)
 })
 
 test('pass `format`', async t => {
-  const duration = timeSpan({ format: n => `${Math.round(n)}ms` })
+  const format = n => `${Math.round(n)}ms`
+  const timeSpan = createTimeSpan({ format })
+  const duration = timeSpan()
+  console.log(duration)
   await setTimeout(100)
   const end = duration()
   t.true(end.endsWith('ms'))