[Unicode Escape Sequences & Code Point Escapes] How they can be used as identifiers in JavaScript #javascript #tip

unicode.js

/*
* Unicode escape sequences & code point escapes
* can be used as identifiers in JavaScript...
*/

const obj1 = { x: 'x' }
console.log( obj1.\u0078 )   // 'x'

const obj2 = { x: 'still x' }
console.log( obj2.\u{78} )   // 'still x'

const obj3 = { 愛: 'Love' }
console.log( obj3.\u611B )   // 'Love'

const obj4 = {}
obj4.\u611B = 'Love'
console.log( obj4 )   // { 愛: 'Love' }

const \u611B = 'Love'
console.log( 愛 )     // 'Love'

const \u5e73\u548c = 'Peace'
console.log( 平和 )   // 'Peace'


/*
* ...unless they represent an invalid identifier.
*/

const \u20ba = '₺'          // Uncaught SyntaxError

const \u{69}\u{66} = 'if'   // Uncaught SyntaxError