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authorRebecca Turner <me@re-becca.org>2018-04-20 18:26:37 -0700
committerRebecca Turner <me@re-becca.org>2018-05-24 23:24:45 -0700
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deps: upgrade npm to 6.1.0
PR-URL: https://github.com/nodejs/node/pull/20190 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Michaƫl Zasso <targos@protonmail.com>
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+var createWrapper = require('../internal/createWrapper'),
+ isIterateeCall = require('../internal/isIterateeCall');
+
+/** Used to compose bitmasks for wrapper metadata. */
+var ARY_FLAG = 128;
+
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeMax = Math.max;
+
+/**
+ * Creates a function that accepts up to `n` arguments ignoring any
+ * additional arguments.
+ *
+ * @static
+ * @memberOf _
+ * @category Function
+ * @param {Function} func The function to cap arguments for.
+ * @param {number} [n=func.length] The arity cap.
+ * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * _.map(['6', '8', '10'], _.ary(parseInt, 1));
+ * // => [6, 8, 10]
+ */
+function ary(func, n, guard) {
+ if (guard && isIterateeCall(func, n, guard)) {
+ n = undefined;
+ }
+ n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
+ return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
+}
+
+module.exports = ary;