1.9 KiB
1.9 KiB
id, title, challengeType, videoUrl
| id | title | challengeType | videoUrl |
|---|---|---|---|
| ac6993d51946422351508a41 | 截断字符串 | 5 |
--description--
如果字符串（第一个参数）长于给定的最大字符串长度（第二个参数），则截断该字符串。返回带有...结尾的截断字符串。如果卡住，请记得使用Read-Search-Ask 。编写自己的代码。
--hints--
truncateString("A-tisket a-tasket A green and yellow basket", 8)应该返回“A-tisket ......”。
assert(
truncateString('A-tisket a-tasket A green and yellow basket', 8) ===
'A-tisket...'
);
truncateString("Peter Piper picked a peck of pickled peppers", 11)应该回归“Peter Piper ......”。
assert(
truncateString('Peter Piper picked a peck of pickled peppers', 11) ===
'Peter Piper...'
);
truncateString("A-tisket a-tasket A green and yellow basket", "A-tisket a-tasket A green and yellow basket".length)应该返回“A-tisket a-tasket A green and yellow basket”。
assert(
truncateString(
'A-tisket a-tasket A green and yellow basket',
'A-tisket a-tasket A green and yellow basket'.length
) === 'A-tisket a-tasket A green and yellow basket'
);
truncateString("A-tisket a-tasket A green and yellow basket", "A-tisket a-tasket A green and yellow basket".length + 2)应返回“A-tisket a-tasket A green and yellow basket”。
assert(
truncateString(
'A-tisket a-tasket A green and yellow basket',
'A-tisket a-tasket A green and yellow basket'.length + 2
) === 'A-tisket a-tasket A green and yellow basket'
);
truncateString("A-", 1)应返回“A ...”。
assert(truncateString('A-', 1) === 'A...');
truncateString("Absolutely Longer", 2)应返回“Ab ...”。
assert(truncateString('Absolutely Longer', 2) === 'Ab...');