* 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>
1.3 KiB
1.3 KiB
id, title, challengeType, videoUrl, forumTopicId, dashedName
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
56533eb9ac21ba0edf2244c0 | 函数中的全局作用域和局部作用域 | 1 | https://scrimba.com/c/c2QwKH2 | 18194 | global-vs--local-scope-in-functions |
--description--
一个程序中有可能具有相同名称的局部变量 和全局变量。在这种情况下,局部
变量将会优先于全局
变量。
下面为例:
var someVar = "Hat";
function myFun() {
var someVar = "Head";
return someVar;
}
函数myFun
将会返回"Head"
,因为局部变量
优先级更高。
--instructions--
给myOutfit
添加一个局部变量来覆盖outerWear
的值为"sweater"
。
--hints--
不要修改全局变量outerWear
的值。
assert(outerWear === 'T-Shirt');
myOutfit
应该返回"sweater"
。
assert(myOutfit() === 'sweater');
不要修改return
语句。
assert(/return outerWear/.test(code));
--seed--
--seed-contents--
// Setup
var outerWear = "T-Shirt";
function myOutfit() {
// Only change code below this line
// Only change code above this line
return outerWear;
}
myOutfit();
--solutions--
var outerWear = "T-Shirt";
function myOutfit() {
var outerWear = "sweater";
return outerWear;
}