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reduce: Throw TypeError if the channel contains no values and initialValue is not provided.

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David Braun 2017-10-13 21:32:27 -04:00
parent 7d0d203c2e
commit ecc01b686e
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GPG key ID: 5694EEC4D129BDCF
3 changed files with 77 additions and 54 deletions
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10
lib/index.js
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@ -182,14 +182,20 @@ const Channel = function (bufferLength = 0) {
await readOnly.forEach((currentValue) => {
if (previousValueDefined) {
previousValue = callbackfn(previousValue, currentValue, 0, readOnly)
previousValue = callbackfn(previousValue, currentValue)
} else {
previousValue = currentValue
previousValueDefined = true
}
})
return previousValue
if (previousValueDefined) {
return previousValue
} else {
throw new TypeError(
`No values in channel and initialValue wasn't provided.`
)
}
},
shift: function () {