xor.md Added

snippets/xor.md

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+---
+title: xor
+tags: math,logic,beginner
+---
+
+Returns `true` if only one of the arguments is `true`, `false` otherwise.
+
+- Using basic or (`||`), and (`&&`), and not (`!`) operators Logical xor. 
+- You can use the Bitwise xor (`^`) operator also on the two given values.
+
+```js
+const xor = (a, b) => ( ( a || b ) && !( a && b ) );
+```
+
+```js
+xor(true, true); // false
+xor(true, false); // true
+xor(false, true); // true
+xor(false, false); // false
+```