40 lines
No EOL
1.1 KiB
JavaScript
40 lines
No EOL
1.1 KiB
JavaScript
import _checkForMethod from "./internal/_checkForMethod.js";
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import _curry2 from "./internal/_curry2.js";
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/**
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* Creates a new list with the separator interposed between elements.
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*
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* Dispatches to the `intersperse` method of the second argument, if present.
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*
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* @func
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* @memberOf R
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* @since v0.14.0
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* @category List
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* @sig a -> [a] -> [a]
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* @param {*} separator The element to add to the list.
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* @param {Array} list The list to be interposed.
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* @return {Array} The new list.
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* @example
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*
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* R.intersperse('a', ['b', 'n', 'n', 's']); //=> ['b', 'a', 'n', 'a', 'n', 'a', 's']
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*/
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var intersperse = /*#__PURE__*/_curry2( /*#__PURE__*/_checkForMethod('intersperse', function _intersperse(separator, list) {
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var length = list.length;
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if (length === 0) {
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return [];
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}
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var out = Array(length * 2 - 1);
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var idx = 0;
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while (idx < length) {
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var i = idx * 2;
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if (idx === length - 1) {
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out[i] = list[idx];
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} else {
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out[i] = list[idx];
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out[i + 1] = separator;
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}
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idx += 1;
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}
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return out;
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}));
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export default intersperse; |