Unicode East Asian Width data for Node.js

Based on EastAsianWidth-15.1.0.

const easta = require("easta");

assert(easta("A") === "Na"); // Narrow
assert(easta("Ａ") === "F"); // Fullwidth
assert(easta("ア") === "W"); // Wide
assert(easta("ｱ") === "H"); // Halfwidth
assert(easta("α") === "A"); // Ambiguous
assert(easta("À") === "N"); // Neutral

• 9.0.0: update for Unicode 16.0.0, support Node v20+
• 8.0.0: update for Unicode 15.1.0, support Node v18+
• 7.0.0: update for Unicode 15.0.0, support Node v14+
• 6.0.0: update for Unicode 14.0.0, support Node v12+ and add typings for TypeScript
• 5.0.0: update for Unicode 13.0.0, support Node v10+
• 4.0.0: update for Unicode 12.1.0, support for Node v8+
• 3.0.1: reduce data size from 24KB to 13KB
• 3.0.0: update for Unicode 11.0.0, support for Node v6+
• 2.0.0: update for Unicode 10.0.0, drop Node v7
• 1.0.1: fix document
• 1.0.0: initial release (based on Unicode 9.0.0)

MIT License: Teppei Sato <[email protected]>