* 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>
1.9 KiB
1.9 KiB
id, title, challengeType, videoUrl, forumTopicId, dashedName
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
5690307fddb111c6084545d7 | if else 语句中的逻辑顺序 | 1 | https://scrimba.com/c/cwNvMUV | 18228 | logical-order-in-if-else-statements |
--description--
if
、else if
语句中代码的执行顺序是很重要的。
在条件判断语句中,代码的执行顺序是从上到下,所以你需要考虑清楚先执行哪一句,后执行哪一句。
这有两个例子。
第一个例子:
function foo(x) {
if (x < 1) {
return "Less than one";
} else if (x < 2) {
return "Less than two";
} else {
return "Greater than or equal to two";
}
}
第二个例子更改了代码的执行顺序:
function bar(x) {
if (x < 2) {
return "Less than two";
} else if (x < 1) {
return "Less than one";
} else {
return "Greater than or equal to two";
}
}
这两个函数看起来几乎一模一样,我们传一个值进去看看它们有什么区别。
foo(0) // "Less than one"
bar(0) // "Less than two"
--instructions--
更改函数的逻辑顺序以便通过所有的测试用例。
--hints--
orderMyLogic(4)
应该返回 "Less than 5"。
assert(orderMyLogic(4) === 'Less than 5');
orderMyLogic(6)
应该返回 "Less than 10"。
assert(orderMyLogic(6) === 'Less than 10');
orderMyLogic(11)
应该返回 "Greater than or equal to 10"。
assert(orderMyLogic(11) === 'Greater than or equal to 10');
--seed--
--seed-contents--
function orderMyLogic(val) {
if (val < 10) {
return "Less than 10";
} else if (val < 5) {
return "Less than 5";
} else {
return "Greater than or equal to 10";
}
}
orderMyLogic(7);
--solutions--
function orderMyLogic(val) {
if(val < 5) {
return "Less than 5";
} else if (val < 10) {
return "Less than 10";
} else {
return "Greater than or equal to 10";
}
}