ee1e8abd87
* 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>
61 lines
815 B
Markdown
61 lines
815 B
Markdown
---
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id: cf1111c1c11feddfaeb3bdef
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title: 加法运算
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cM2KBAG'
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forumTopicId: 16650
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dashedName: add-two-numbers-with-javascript
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---
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# --description--
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`Number`是 JavaScript 中的一种数据类型，表示数值。
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现在让我们来尝试在 JavaScript 中做加法运算。
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JavaScript 中使用`+`号进行加法运算。
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**示例**
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```js
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myVar = 5 + 10; // assigned 15
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```
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# --instructions--
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改变数字`0`让变量 sum 的值为`20`。
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# --hints--
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`sum`应该等于`20`。
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```js
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assert(sum === 20);
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```
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要使用`+`运算符。
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```js
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assert(/\+/.test(code));
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```
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# --seed--
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## --after-user-code--
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```js
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(function(z){return 'sum = '+z;})(sum);
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```
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## --seed-contents--
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```js
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var sum = 10 + 0;
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```
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# --solutions--
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```js
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var sum = 10 + 10;
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```
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