31 lines
943 B
JavaScript
31 lines
943 B
JavaScript
import _curry3 from "./internal/_curry3.js";
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/**
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* Inserts the supplied element into the list, at the specified `index`. _Note that
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* this is not destructive_: it returns a copy of the list with the changes.
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* <small>No lists have been harmed in the application of this function.</small>
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*
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* @func
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* @memberOf R
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* @since v0.2.2
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* @category List
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* @sig Number -> a -> [a] -> [a]
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* @param {Number} index The position to insert the element
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* @param {*} elt The element to insert into the Array
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* @param {Array} list The list to insert into
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* @return {Array} A new Array with `elt` inserted at `index`.
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* @example
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*
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* R.insert(2, 'x', [1,2,3,4]); //=> [1,2,'x',3,4]
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*/
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var insert =
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/*#__PURE__*/
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_curry3(function insert(idx, elt, list) {
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idx = idx < list.length && idx >= 0 ? idx : list.length;
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var result = Array.prototype.slice.call(list, 0);
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result.splice(idx, 0, elt);
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return result;
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});
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export default insert; |