packages/fela-utils/src/findIndex.js
// workaround, because can't use native Array findIndex in IE https://github.com/robinweser/fela/pull/766
export default function findIndex(array, predicate) {
let index = -1
for (let i = 0; i < array.length; i++) {
if (predicate(array[i])) {
index = i
break
}
}
return index
}