114 lines
2.5 KiB
Markdown
114 lines
2.5 KiB
Markdown
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---
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id: acda2fb1324d9b0fa741e6b5
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title: 確認結尾
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challengeType: 5
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forumTopicId: 16006
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dashedName: confirm-the-ending
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---
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# --description--
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檢查字符串（第一個參數 `str`）是否以給定的目標字符串（第二個參數 `target`）結束。
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這個挑戰 *可以* 用 ES2015 引入的 `.endsWith()` 方法來解決。但在這個挑戰中，請使用 JavaScript 的字符串子串方法。
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# --hints--
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`confirmEnding("Bastian", "n")` 應返回 `true`。
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```js
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assert(confirmEnding('Bastian', 'n') === true);
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```
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`confirmEnding("Congratulation", "on")` 應返回 `true`。
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```js
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assert(confirmEnding('Congratulation', 'on') === true);
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```
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`confirmEnding("Connor", "n")` 應返回 `false`。
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```js
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assert(confirmEnding('Connor', 'n') === false);
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```
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`confirmEnding("Walking on water and developing software from a specification are easy if both are frozen", "specification")` 應返回 `false`。
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```js
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assert(
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confirmEnding(
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'Walking on water and developing software from a specification are easy if both are frozen',
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'specification'
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) === false
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);
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```
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`confirmEnding("He has to give me a new name", "name")` 應返回 `true`。
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```js
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assert(confirmEnding('He has to give me a new name', 'name') === true);
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```
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`confirmEnding("Open sesame", "same")` 應返回 `true`。
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```js
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assert(confirmEnding('Open sesame', 'same') === true);
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```
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`confirmEnding("Open sesame", "sage")` 應返回 `false`。
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```js
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assert(confirmEnding('Open sesame', 'sage') === false);
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```
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`confirmEnding("Open sesame", "game")` 應返回 `false`。
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```js
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assert(confirmEnding('Open sesame', 'game') === false);
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```
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`confirmEnding("If you want to save our world, you must hurry. We dont know how much longer we can withstand the nothing", "mountain")` 應返回 `false`。
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```js
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assert(
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confirmEnding(
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'If you want to save our world, you must hurry. We dont know how much longer we can withstand the nothing',
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'mountain'
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) === false
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);
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```
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`confirmEnding("Abstraction", "action")` 應該返回 `true`。
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```js
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assert(confirmEnding('Abstraction', 'action') === true);
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```
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不應使用內置方法 `.endsWith()` 來完成挑戰。
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```js
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assert(!/\.endsWith\(.*?\)\s*?;?/.test(code) && !/\['endsWith'\]/.test(code));
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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 confirmEnding(str, target) {
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return str;
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}
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confirmEnding("Bastian", "n");
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```
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# --solutions--
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```js
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function confirmEnding(str, target) {
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return str.substring(str.length - target.length) === target;
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}
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confirmEnding("Bastian", "n");
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```
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