90 lines
2.2 KiB
Markdown
90 lines
2.2 KiB
Markdown
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---
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id: 5c3dda8b4d8df89bea71600f
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title: Check For Mixed Grouping of Characters
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challengeType: 1
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forumTopicId: 301339
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dashedName: check-for-mixed-grouping-of-characters
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---
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# --description--
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Sometimes we want to check for groups of characters using a Regular Expression and to achieve that we use parentheses `()`.
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If you want to find either `Penguin` or `Pumpkin` in a string, you can use the following Regular Expression: `/P(engu|umpk)in/g`
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Then check whether the desired string groups are in the test string by using the `test()` method.
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```js
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let testStr = "Pumpkin";
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let testRegex = /P(engu|umpk)in/;
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testRegex.test(testStr);
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// Returns true
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```
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# --instructions--
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Fix the regex so that it checks for the names of `Franklin Roosevelt` or `Eleanor Roosevelt` in a case sensitive manner and it should make concessions for middle names.
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Then fix the code so that the regex that you have created is checked against `myString` and either `true` or `false` is returned depending on whether the regex matches.
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# --hints--
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Your regex `myRegex` should return `true` for the string `Franklin D. Roosevelt`
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```js
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myRegex.lastIndex = 0;
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assert(myRegex.test('Franklin D. Roosevelt'));
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```
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Your regex `myRegex` should return `true` for the string `Eleanor Roosevelt`
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```js
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myRegex.lastIndex = 0;
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assert(myRegex.test('Eleanor Roosevelt'));
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```
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Your regex `myRegex` should return `false` for the string `Franklin Rosevelt`
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```js
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myRegex.lastIndex = 0;
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assert(!myRegex.test('Franklin Rosevelt'));
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```
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Your regex `myRegex` should return `false` for the string `Frank Roosevelt`
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```js
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myRegex.lastIndex = 0;
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assert(!myRegex.test('Frank Roosevelt'));
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```
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You should use `.test()` to test the regex.
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```js
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assert(code.match(/myRegex.test\(\s*myString\s*\)/));
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```
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Your result should return `true`.
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```js
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assert(result === true);
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```
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# --seed--
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## --seed-contents--
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```js
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let myString = "Eleanor Roosevelt";
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let myRegex = /False/; // Change this line
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let result = false; // Change this line
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// After passing the challenge experiment with myString and see how the grouping works
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```
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# --solutions--
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```js
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let myString = "Eleanor Roosevelt";
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let myRegex = /(Franklin|Eleanor).*Roosevelt/;
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let result = myRegex.test(myString);
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```
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