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47 lines
1.5 KiB
TypeScript
47 lines
1.5 KiB
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/dropWhile.js
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import _curry2 from './internal/_curry2.js';
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import _dispatchable from './internal/_dispatchable.js';
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import _xdropWhile from './internal/_xdropWhile.js';
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import slice from './slice.js';
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/**
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* Returns a new list excluding the leading elements of a given list which
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* satisfy the supplied predicate function. It passes each value to the supplied
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* predicate function, skipping elements while the predicate function returns
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* `true`. The predicate function is applied to one argument: *(value)*.
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*
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* Dispatches to the `dropWhile` method of the second argument, if present.
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*
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* Acts as a transducer if a transformer is given in list position.
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*
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* @func
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* @memberOf R
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* @since v0.9.0
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* @category List
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* @sig (a -> Boolean) -> [a] -> [a]
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* @sig (a -> Boolean) -> String -> String
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* @param {Function} fn The function called per iteration.
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* @param {Array} xs The collection to iterate over.
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* @return {Array} A new array.
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* @see R.takeWhile, R.transduce, R.addIndex
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* @example
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*
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* const lteTwo = x => x <= 2;
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*
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* R.dropWhile(lteTwo, [1, 2, 3, 4, 3, 2, 1]); //=> [3, 4, 3, 2, 1]
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*
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* R.dropWhile(x => x !== 'd' , 'Ramda'); //=> 'da'
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*/
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var dropWhile = _curry2(_dispatchable(['dropWhile'], _xdropWhile, function dropWhile(pred, xs) {
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var idx = 0;
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var len = xs.length;
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while (idx < len && pred(xs[idx])) {
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idx += 1;
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}
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return slice(idx, Infinity, xs);
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}));
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export default dropWhile;
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