unicode_length.js

var fs = require('fs');
var text = fs.readFileSync('./unicode_plane.txt');
var lines = text.toString().split('\n')

for (i=0; i < lines.length; i++) {
    // console.log(lines[i].split(' '));
    unicode_char = lines[i].split(' ')[0];
    count = lines[i].split(' ')[1];
    
    // test for not use spread operator 
    // if (unicode_char.length !== parseInt(count)) {
    //     console.log(unicode_char, count, unicode_char.length.toString())
    // };

    // test for spread operator 
    if ([...unicode_char].length !== parseInt(count)) {
        console.log(unicode_char, count, [...unicode_char].length.toString())
    };
}