* 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>
2.4 KiB
2.4 KiB
id, title, challengeType, videoUrl, forumTopicId, dashedName
| id | title | challengeType | videoUrl | forumTopicId | dashedName |
|---|---|---|---|---|---|
| 56533eb9ac21ba0edf2244df | 在 Switch 语句添加多个相同选项 | 1 | https://scrimba.com/c/cdBKWCV | 18242 | multiple-identical-options-in-switch-statements |
--description--
如果你忘了给switch的每一条case添加break,那么直到遇见break为止,后续的case会一直执行。如果你想为多个不同的输入设置相同的结果,可以这样写:
switch(val) {
case 1:
case 2:
case 3:
result = "1, 2, or 3";
break;
case 4:
result = "4 alone";
}
这样,1、2、3 都会有相同的结果。
--instructions--
请写一个switch语句,根据输入的val的范围得出对应的answer:
1-3 - "Low"
4-6 - "Mid"
7-9 - "High"
提示:
你的case应基于范围中的每一个数字编写。
--hints--
sequentialSizes(1)应该返回 "Low"。
assert(sequentialSizes(1) === 'Low');
sequentialSizes(2)应该返回 "Low"。
assert(sequentialSizes(2) === 'Low');
sequentialSizes(3)应该返回 "Low"。
assert(sequentialSizes(3) === 'Low');
sequentialSizes(4)应该返回 "Mid"。
assert(sequentialSizes(4) === 'Mid');
sequentialSizes(5)应该返回 "Mid"。
assert(sequentialSizes(5) === 'Mid');
sequentialSizes(6)应该返回 "Mid"。
assert(sequentialSizes(6) === 'Mid');
sequentialSizes(7)应该返回 "High"。
assert(sequentialSizes(7) === 'High');
sequentialSizes(8)应该返回 "High"。
assert(sequentialSizes(8) === 'High');
sequentialSizes(9)应该返回 "High"。
assert(sequentialSizes(9) === 'High');
你不应使用if或else语句。
assert(!/else/g.test(code) || !/if/g.test(code));
你应该编写 9 个case语句。
assert(code.match(/case/g).length === 9);
--seed--
--seed-contents--
function sequentialSizes(val) {
var answer = "";
// Only change code below this line
// Only change code above this line
return answer;
}
sequentialSizes(1);
--solutions--
function sequentialSizes(val) {
var answer = "";
switch(val) {
case 1:
case 2:
case 3:
answer = "Low";
break;
case 4:
case 5:
case 6:
answer = "Mid";
break;
case 7:
case 8:
case 9:
answer = "High";
}
return answer;
}