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[yaffs-website] / node_modules / grunt-legacy-log / node_modules / lodash / function / before.js

diff --git a/node_modules/grunt-legacy-log/node_modules/lodash/function/before.js b/node_modules/grunt-legacy-log/node_modules/lodash/function/before.js
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+/** Used as the `TypeError` message for "Functions" methods. */
+var FUNC_ERROR_TEXT = 'Expected a function';
+
+/**
+ * Creates a function that invokes `func`, with the `this` binding and arguments
+ * of the created function, while it's called less than `n` times. Subsequent
+ * calls to the created function return the result of the last `func` invocation.
+ *
+ * @static
+ * @memberOf _
+ * @category Function
+ * @param {number} n The number of calls at which `func` is no longer invoked.
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * jQuery('#add').on('click', _.before(5, addContactToList));
+ * // => allows adding up to 4 contacts to the list
+ */
+function before(n, func) {
+  var result;
+  if (typeof func != 'function') {
+    if (typeof n == 'function') {
+      var temp = n;
+      n = func;
+      func = temp;
+    } else {
+      throw new TypeError(FUNC_ERROR_TEXT);
+    }
+  }
+  return function() {
+    if (--n > 0) {
+      result = func.apply(this, arguments);
+    }
+    if (n <= 1) {
+      func = undefined;
+    }
+    return result;
+  };
+}
+
+module.exports = before;