* 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>
950 B
950 B
id, title, challengeType, videoUrl, dashedName
id | title | challengeType | videoUrl | dashedName |
---|---|---|---|---|
587d8254367417b2b2512c71 | 从ES6中的集中删除项目 | 1 | remove-items-from-a-set-in-es6 |
--description--
让我们使用delete
方法练习从ES6集中delete
。首先,创建一个ES6 Set var set = new Set([1,2,3]);
现在使用delete
方法从Set中删除一个项目。
set.delete(1);
console.log([... set])//应该返回[2,3]
--instructions--
现在,创建一个整数为1,2,3,4和5的集合。删除值2和5,然后返回集合。
--hints--
您的集应包含值1,3和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;}