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authorsowgro <tpoke.ferrari@gmail.com>2023-09-02 19:12:47 -0400
committersowgro <tpoke.ferrari@gmail.com>2023-09-02 19:12:47 -0400
commite4450c8417624b71d779cb4f41692538f9165e10 (patch)
treeb70826542223ecdf8a7a259f61b0a1abb8a217d8 /node_modules/lodash/_shuffleSelf.js
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+var baseRandom = require('./_baseRandom');
+
+/**
+ * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
+ *
+ * @private
+ * @param {Array} array The array to shuffle.
+ * @param {number} [size=array.length] The size of `array`.
+ * @returns {Array} Returns `array`.
+ */
+function shuffleSelf(array, size) {
+ var index = -1,
+ length = array.length,
+ lastIndex = length - 1;
+
+ size = size === undefined ? length : size;
+ while (++index < size) {
+ var rand = baseRandom(index, lastIndex),
+ value = array[rand];
+
+ array[rand] = array[index];
+ array[index] = value;
+ }
+ array.length = size;
+ return array;
+}
+
+module.exports = shuffleSelf;