--- id: 56533eb9ac21ba0edf2244ed title: Appending Variables to Strings challengeType: 1 videoUrl: 'https://scrimba.com/c/cbQmZfa' --- ## Description <section id='description'> Just as we can build a string over multiple lines out of string <dfn>literals</dfn>, we can also append variables to a string using the plus equals (<code>+=</code>) operator. </section> ## Instructions <section id='instructions'> Set <code>someAdjective</code> and append it to <code>myStr</code> using the <code>+=</code> operator. </section> ## Tests <section id='tests'> ```yml tests: - text: <code>someAdjective</code> should be set to a string at least 3 characters long testString: assert(typeof someAdjective !== 'undefined' && someAdjective.length > 2, '<code>someAdjective</code> should be set to a string at least 3 characters long'); - text: Append <code>someAdjective</code> to <code>myStr</code> using the <code>+=</code> operator testString: assert(code.match(/myStr\s*\+=\s*someAdjective\s*/).length > 0, 'Append <code>someAdjective</code> to <code>myStr</code> using the <code>+=</code> operator'); ``` </section> ## Challenge Seed <section id='challengeSeed'> <div id='js-seed'> ```js // Example var anAdjective = "awesome!"; var ourStr = "freeCodeCamp is "; ourStr += anAdjective; // Only change code below this line var someAdjective; var myStr = "Learning to code is "; ``` </div> ### After Test <div id='js-teardown'> ```js (function(){ var output = []; if(typeof someAdjective === 'string') { output.push('someAdjective = "' + someAdjective + '"'); } else { output.push('someAdjective is not a string'); } if(typeof myStr === 'string') { output.push('myStr = "' + myStr + '"'); } else { output.push('myStr is not a string'); } return output.join('\n'); })(); ``` </div> </section> ## Solution <section id='solution'> ```js var anAdjective = "awesome!"; var ourStr = "freeCodeCamp is "; ourStr += anAdjective; var someAdjective = "neat"; var myStr = "Learning to code is "; myStr += someAdjective; ``` </section>