下面的JavaScript映射有什么问题？

Question

const myAssetMap = {
  General: {
    name: 'Common',
    bkgHex: '#eee',
    fontHex: '#aaa',
  },
 ...

const getAsset = (name, type) => {
  return myAssetMap.name.type;
}

console.log( getAsset('General', 'name') );

This is erring with: Uncaught TypeError: Cannot read property 'type' of undefined

Answer 1

You are trying to access the keys name and type , not the keys stored in the variables. Use bracket notation instead:

return myAssetMap[name][type];