--- id: 56533eb9ac21ba0edf2244ac title: Increment a Number with JavaScript challengeType: 1 videoUrl: 'https://scrimba.com/c/ca8GLT9' forumTopicId: 18201 --- ## Description <section id='description'> You can easily <dfn>increment</dfn> or add one to a variable with the <code>++</code> operator. <code>i++;</code> is the equivalent of <code>i = i + 1;</code> <strong>Note</strong><br>The entire line becomes <code>i++;</code>, eliminating the need for the equal sign. </section> ## Instructions <section id='instructions'> Change the code to use the <code>++</code> operator on <code>myVar</code>. </section> ## Tests <section id='tests'> ```yml tests: - text: <code>myVar</code> should equal <code>88</code>. testString: assert(myVar === 88); - text: You should not use the assignment operator. testString: assert(/var\s*myVar\s*=\s*87;\s*\/*.*\s*([+]{2}\s*myVar|myVar\s*[+]{2});/.test(code)); - text: You should use the <code>++</code> operator. testString: assert(/[+]{2}\s*myVar|myVar\s*[+]{2}/.test(code)); - text: You should not change code above the specified comment. testString: assert(/var myVar = 87;/.test(code)); ``` </section> ## Challenge Seed <section id='challengeSeed'> <div id='js-seed'> ```js var myVar = 87; // Only change code below this line myVar = myVar + 1; ``` </div> ### After Test <div id='js-teardown'> ```js (function(z){return 'myVar = ' + z;})(myVar); ``` </div> </section> ## Solution <section id='solution'> ```js var myVar = 87; myVar++; ``` </section>