---
id: 56533eb9ac21ba0edf2244d2
title: Comparison with the Inequality Operator
challengeType: 1
videoUrl: ''
localeTitle: 与不等式算子的比较
---
## Description
不等运算符（ != ）与等于运算符相反。它意味着“不等于”并返回false ，其中相等性将返回true ， 反之亦然 。与等式运算符一样，不等式运算符将在比较时转换数据类型的值。 例子 1！= 2 //是的
1！=“1”//假
1！='1'//假
1！= true // false
0！= false // false
## Instructions
在if语句中添加不等式运算符!= ，以便当val不等于99时函数将返回“Not Equal”
## Tests
```yml
tests:
- text: testNotEqual(99)应返回“Equal”
testString: 'assert(testNotEqual(99) === "Equal", "testNotEqual(99) should return "Equal"");'
- text: testNotEqual("99")应该返回“Equal”
testString: 'assert(testNotEqual("99") === "Equal", "testNotEqual("99") should return "Equal"");'
- text: testNotEqual(12)应该返回“Not Equal”
testString: 'assert(testNotEqual(12) === "Not Equal", "testNotEqual(12) should return "Not Equal"");'
- text: testNotEqual("12")应该返回“Not Equal”
testString: 'assert(testNotEqual("12") === "Not Equal", "testNotEqual("12") should return "Not Equal"");'
- text: testNotEqual("bob")应返回“Not Equal”
testString: 'assert(testNotEqual("bob") === "Not Equal", "testNotEqual("bob") should return "Not Equal"");'
- text: 你应该使用!=运算符
testString: 'assert(code.match(/(?!!==)!=/), "You should use the != operator");'
```
## Challenge Seed
```js
// Setup
function testNotEqual(val) {
if (val) { // Change this line
return "Not Equal";
}
return "Equal";
}
// Change this value to test
testNotEqual(10);
```
## Solution
```js
// solution required
```