yamada_n/ただのメモ

let wrongMap = new Map()
wrongMap['bla'] = 'blaa'
wrongMap['bla2'] = 'blaaa2'

console.log(wrongMap)  // Map { bla: 'blaa', bla2: 'blaaa2' }

console.log(wrongMap.get('bla'));

let rightMap = new Map()
rightMap.set('bla', 'blaa');
rightMap.set('bla2', 'blaaa2');

console.log(rightMap)  // Map { bla: 'blaa', bla2: 'blaaa2' }