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filipesperandio/joinEndWith.js

Last active July 19, 2019 19:32
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joinEndWith.js
function joinEndWith(arr, separator, last) {
const reg = new RegExp(`(.+)${separator}(.+)`)
return arr.join(separator).replace(reg, `$1${last}$2`)
}
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joinEndWith([1,2,3], ", ", " and ")
// "1, 2 and 3"

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