1.7 KiB
1.7 KiB
id, title, challengeType, videoUrl, forumTopicId
id | title | challengeType | videoUrl | forumTopicId |
---|---|---|---|---|
56533eb9ac21ba0edf2244cc | Accessing Nested Objects | 1 | https://scrimba.com/c/cRnRnfa | 16161 |
--description--
The sub-properties of objects can be accessed by chaining together the dot or bracket notation.
Here is a nested object:
var ourStorage = {
"desk": {
"drawer": "stapler"
},
"cabinet": {
"top drawer": {
"folder1": "a file",
"folder2": "secrets"
},
"bottom drawer": "soda"
}
};
ourStorage.cabinet["top drawer"].folder2; // "secrets"
ourStorage.desk.drawer; // "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 "maps".
assert(gloveBoxContents === 'maps');
Your code should use dot and bracket notation to access myStorage
.
assert(/=\s*myStorage\.car\.inside\[\s*("|')glove box\1\s*\]/g.test(code));
--seed--
--after-user-code--
(function(x) {
if(typeof x != 'undefined') {
return "gloveBoxContents = " + x;
}
return "gloveBoxContents is undefined";
})(gloveBoxContents);
--seed-contents--
// Setup
var myStorage = {
"car": {
"inside": {
"glove box": "maps",
"passenger seat": "crumbs"
},
"outside": {
"trunk": "jack"
}
}
};
var gloveBoxContents = undefined; // Change this line
--solutions--
var myStorage = {
"car":{
"inside":{
"glove box":"maps",
"passenger seat":"crumbs"
},
"outside":{
"trunk":"jack"
}
}
};
var gloveBoxContents = myStorage.car.inside["glove box"];