node-high-order

Calculates the number of bytes in a UTF-8 glyph given just its first byte

Usage:

const highOrder = require('high-order');

console.log(highOrder(0xC0)); //-> 2
console.log(highOrder(0x01)); //-> 1

// continuation byte
console.log(highOrder(0x81)); //-> 0

console.log(Buffer('🦄')[0])); //-> 4

License

Licensed under the MIT License. You can find a copy of it in LICENSE.