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>
73 lines
1.3 KiB
Markdown
73 lines
1.3 KiB
Markdown
---
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id: 587d7b7e367417b2b2512b23
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title: Use the parseInt Function
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cm83LSW'
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forumTopicId: 301183
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dashedName: use-the-parseint-function
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---
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# --description--
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The `parseInt()` function parses a string and returns an integer. Here's an example:
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`var a = parseInt("007");`
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The above function converts the string "007" to an integer 7. If the first character in the string can't be converted into a number, then it returns `NaN`.
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# --instructions--
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Use `parseInt()` in the `convertToInteger` function so it converts the input string `str` into an integer, and returns it.
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# --hints--
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`convertToInteger` should use the `parseInt()` function
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```js
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assert(/parseInt/g.test(code));
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```
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`convertToInteger("56")` should return a number
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```js
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assert(typeof convertToInteger('56') === 'number');
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```
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`convertToInteger("56")` should return 56
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```js
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assert(convertToInteger('56') === 56);
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```
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`convertToInteger("77")` should return 77
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```js
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assert(convertToInteger('77') === 77);
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```
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`convertToInteger("JamesBond")` should return NaN
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```js
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assert.isNaN(convertToInteger('JamesBond'));
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```
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# --seed--
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## --seed-contents--
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```js
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function convertToInteger(str) {
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}
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convertToInteger("56");
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```
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# --solutions--
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```js
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function convertToInteger(str) {
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return parseInt(str);
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}
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```
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