--description--
The sub-properties of objects can be accessed by chaining together the dot or bracket notation.
Here is a nested object:
const ourStorage = {
"desk": {
"drawer": "stapler"
},
"cabinet": {
"top drawer": {
"folder1": "a file",
"folder2": "secrets"
},
"bottom drawer": "soda"
}
};
ourStorage.cabinet["top drawer"].folder2;
ourStorage.desk.drawer;
ourStorage.cabinet["top drawer"].folder2
would be the string secrets
, and ourStorage.desk.drawer
would be the string stapler
.
--instructions--
Access the myStorage
object and assign the contents of the glove box
property to the gloveBoxContents
variable. Use dot notation for all properties where possible, otherwise use bracket notation.
--hints--
gloveBoxContents
should equal the string maps
.
assert(gloveBoxContents === 'maps');
Your code should use dot notation, where possible, to access myStorage
.
assert.match(code, /myStorage\.car\.inside/);
gloveBoxContents
should still be declared with const
.
assert.match(code, /const\s+gloveBoxContents\s*=/);
You should not change the myStorage
object.
const expectedMyStorage = {
"car":{
"inside":{
"glove box":"maps",
"passenger seat":"crumbs"
},
"outside":{
"trunk":"jack"
}
}
};
assert.deepStrictEqual(myStorage, expectedMyStorage);
--seed--
--after-user-code--
(function(x) {
if(typeof x != 'undefined') {
return "gloveBoxContents = " + x;
}
return "gloveBoxContents is undefined";
})(gloveBoxContents);
--seed-contents--
const myStorage = {
"car": {
"inside": {
"glove box": "maps",
"passenger seat": "crumbs"
},
"outside": {
"trunk": "jack"
}
}
};
const gloveBoxContents = undefined;
--solutions--
const myStorage = {
"car":{
"inside":{
"glove box":"maps",
"passenger seat":"crumbs"
},
"outside":{
"trunk":"jack"
}
}
};
const gloveBoxContents = myStorage.car.inside["glove box"];