* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
999 B
999 B
id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d8254367417b2b2512c71 | Remove items from a set in ES6 | 1 | 301713 | remove-items-from-a-set-in-es6 |
--description--
Let's practice removing items from an ES6 Set using the delete
method.
First, create an ES6 Set:
var set = new Set([1,2,3]);
Now remove an item from your Set with the delete
method.
set.delete(1);
console.log([...set]) // should return [ 2, 3 ]
--instructions--
Now, create a set with the integers 1, 2, 3, 4, & 5.
Remove the values 2 and 5, and then return the set.
--hints--
Your Set should contain the values 1, 3, & 4
assert(
(function () {
var test = checkSet();
return test.has(1) && test.has(3) && test.has(4) && test.size === 3;
})()
);
--seed--
--seed-contents--
function checkSet(){
var set = null;
return set;
}
--solutions--
function checkSet(){
var set = new Set([1,2,3,4,5]);
set.delete(2);
set.delete(5);
return set;}