* 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>
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1.2 KiB
id, title, challengeType, videoUrl, forumTopicId, dashedName
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
56bbb991ad1ed5201cd392cb | 使用 push() 操作数组 | 1 | https://scrimba.com/c/cnqmVtJ | 18237 | manipulate-arrays-with-push |
--description--
一个简单的方法将数据添加到一个数组的末尾是通过push()
函数。
.push()
接受一个或多个参数,并把它“推”入到数组的末尾。
var arr = [1,2,3];
arr.push(4);
// arr is now [1,2,3,4]
--instructions--
把["dog", 3]
“推”入到myArray
变量的末尾。
--hints--
myArray
应该等于[["John", 23], ["cat", 2], ["dog", 3]]
。
assert(
(function (d) {
if (
d[2] != undefined &&
d[0][0] == 'John' &&
d[0][1] === 23 &&
d[2][0] == 'dog' &&
d[2][1] === 3 &&
d[2].length == 2
) {
return true;
} else {
return false;
}
})(myArray)
);
--seed--
--after-user-code--
(function(z){return 'myArray = ' + JSON.stringify(z);})(myArray);
--seed-contents--
// Setup
var myArray = [["John", 23], ["cat", 2]];
// Only change code below this line
--solutions--
var myArray = [["John", 23], ["cat", 2]];
myArray.push(["dog",3]);