87 lines
1.9 KiB
Markdown
87 lines
1.9 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244b9
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title: Constructing Strings with Variables
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cqk8rf4'
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forumTopicId: 16805
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---
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## Description
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<section id='description'>
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Sometimes you will need to build a string, <a href="https://en.wikipedia.org/wiki/Mad_Libs" target="_blank">Mad Libs</a> style. By using the concatenation operator (<code>+</code>), you can insert one or more variables into a string you're building.
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</section>
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## Instructions
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<section id='instructions'>
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Set <code>myName</code> to a string equal to your name and build <code>myStr</code> with <code>myName</code> between the strings <code>"My name is "</code> and <code>" and I am well!"</code>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>myName</code> should be set to a string at least 3 characters long.
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testString: assert(typeof myName !== 'undefined' && myName.length > 2);
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- text: You should use two <code>+</code> operators to build <code>myStr</code> with <code>myName</code> inside it.
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testString: assert(code.match(/["']\s*\+\s*myName\s*\+\s*["']/g).length > 0);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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// Example
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var ourName = "freeCodeCamp";
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var ourStr = "Hello, our name is " + ourName + ", how are you?";
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// Only change code below this line
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var myName;
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var myStr;
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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(function(){
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var output = [];
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if(typeof myName === 'string') {
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output.push('myName = "' + myName + '"');
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} else {
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output.push('myName is not a string');
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}
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if(typeof myStr === 'string') {
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output.push('myStr = "' + myStr + '"');
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} else {
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output.push('myStr is not a string');
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}
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return output.join('\n');
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})();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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var myName = "Bob";
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var myStr = "My name is " + myName + " and I am well!";
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```
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</section>
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