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x/rambda/source/takeWhile.js

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import { isArray as isArrayModule } from './_internals/isArray.js'
export function takeWhile(predicate, iterable){ if (arguments.length === 1){ return _iterable => takeWhile(predicate, _iterable) } const isArray = isArrayModule(iterable) if (!isArray && typeof iterable !== 'string'){ throw new Error('`iterable` is neither list nor a string') }
const toReturn = [] let counter = 0
while (counter < iterable.length){ const item = iterable[ counter++ ] if (!predicate(item)){ break } toReturn.push(item) }
return isArray ? toReturn : toReturn.join('')}