Merge branch 'master' into init-files

Author: eugene-matvejev

README.md

@@ -1,2 +1,29 @@
-# node.js-byte-flag-calculator
-byte flag calculator for javascript
+# node.js-bytes-calculator
+abstract and easy way how to work with bytes in JS
+
+## software requirements
+ * node.js v6.9+ [with v8 enabled]
+ * npm v3+
+
+## used technologies
+ * jest
+ 
+## how to execute tests
+ `npm test`
+to execute tests with coverage
+ `npm test -- --coverage`
+
+## how to use
+`import calc from "node-bytes-calculator";` or `const calc = require("node-bytes-calculator");`
+
+```
+calc.hasBytes(0xff, 0x0f) -> return true as 0xff contains 0x0f bytes
+calc.hasBytes(0x02, 0x08) -> retuns false as 0x02 do not contains 0x08 bytes
+
+calc.addBytes(0x02, 0x02) -> returns 0x02
+calc.addBytes(0x01, 0x02) -> returns 0x03
+
+calc.removeBytes(0x00, 0x01) -> returns 0x00 as there where no bytes
+calc.removeBytes(0x06, 0x02) -> returns 0x04 as 0x02 bytes been delete removed from 0x06
+calc.removeBytes(0x02, 0x06) -> returns 0x02 as 0x06 bytes wasn't presented in 0x02
+```