--- id: 5690307fddb111c6084545d7 title: Logical Order in If Else Statements challengeType: 1 videoUrl: '' localeTitle: 如果其他陈述中的逻辑顺序 --- ## Description <section id="description">订单在<code>if</code> , <code>else if</code>语句中很重要。该函数从上到下执行,因此您需要注意首先出现的语句。以这两个函数为例。这是第一个: <blockquote> function foo(x){ <br> if(x <1){ <br>返回“少于一个”; <br> } else if(x <2){ <br>返回“少于两个”; <br> } else { <br>返回“大于或等于2”; <br> } <br> } </blockquote>第二个只是切换语句的顺序: <blockquote>功能栏(x){ <br> if(x <2){ <br>返回“少于两个”; <br> } else if(x <1){ <br>返回“少于一个”; <br> } else { <br>返回“大于或等于2”; <br> } <br> } </blockquote>虽然如果我们将数字传递给两者,这两个函数看起来几乎相同但我们得到不同的输出。 <blockquote> foo(0)//“不到一个” <br> bar(0)//“少于两个” </blockquote></section> ## Instructions <section id="instructions">更改函数中的逻辑顺序,以便在所有情况下都返回正确的语句。 </section> ## Tests <section id='tests'> ```yml tests: - text: <code>orderMyLogic(4)</code>应返回“小于5” testString: 'assert(orderMyLogic(4) === "Less than 5", "<code>orderMyLogic(4)</code> should return "Less than 5"");' - text: <code>orderMyLogic(6)</code>应该返回“少于10” testString: 'assert(orderMyLogic(6) === "Less than 10", "<code>orderMyLogic(6)</code> should return "Less than 10"");' - text: <code>orderMyLogic(11)</code>应该返回“大于或等于10” testString: 'assert(orderMyLogic(11) === "Greater than or equal to 10", "<code>orderMyLogic(11)</code> should return "Greater than or equal to 10"");' ``` </section> ## Challenge Seed <section id='challengeSeed'> <div id='js-seed'> ```js function orderMyLogic(val) { if (val < 10) { return "Less than 10"; } else if (val < 5) { return "Less than 5"; } else { return "Greater than or equal to 10"; } } // Change this value to test orderMyLogic(7); ``` </div> </section> ## Solution <section id='solution'> ```js // solution required ``` </section>