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themes/ceras/node_modules/array-initial/index.js

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+/*!
+ * array-initial <https://github.com/jonschlinkert/array-initial>
+ *
+ * Copyright (c) 2014 Jon Schlinkert, contributors.
+ * Licensed under the MIT license.
+ */
+
+var isNumber = require('is-number');
+var slice = require('array-slice');
+
+module.exports = function arrayInitial(arr, num) {
+  if (!Array.isArray(arr)) {
+    throw new Error('array-initial expects an array as the first argument.');
+  }
+
+  if (arr.length === 0) {
+    return null;
+  }
+
+  return slice(arr, 0, arr.length - (isNumber(num) ? num : 1));
+};