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node_modules/ramda/es/lastIndexOf.js
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44
node_modules/ramda/es/lastIndexOf.js
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import _curry2 from "./internal/_curry2.js";
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import _isArray from "./internal/_isArray.js";
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import equals from "./equals.js";
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/**
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* Returns the position of the last occurrence of an item in an array, or -1 if
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* the item is not included in the array. [`R.equals`](#equals) is used to
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* determine equality.
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*
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* @func
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* @memberOf R
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* @since v0.1.0
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* @category List
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* @sig a -> [a] -> Number
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* @param {*} target The item to find.
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* @param {Array} xs The array to search in.
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* @return {Number} the index of the target, or -1 if the target is not found.
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* @see R.indexOf
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* @example
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*
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* R.lastIndexOf(3, [-1,3,3,0,1,2,3,4]); //=> 6
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* R.lastIndexOf(10, [1,2,3,4]); //=> -1
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*/
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var lastIndexOf =
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/*#__PURE__*/
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_curry2(function lastIndexOf(target, xs) {
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if (typeof xs.lastIndexOf === 'function' && !_isArray(xs)) {
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return xs.lastIndexOf(target);
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} else {
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var idx = xs.length - 1;
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while (idx >= 0) {
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if (equals(xs[idx], target)) {
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return idx;
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}
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idx -= 1;
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}
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return -1;
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}
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});
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export default lastIndexOf;
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