2.3 KiB
		
	
	
	
	
	
	
	
			
		
		
	
	
			2.3 KiB
		
	
	
	
	
	
	
	
id, title, challengeType, videoUrl, localeTitle
| id | title | challengeType | videoUrl | localeTitle | 
|---|---|---|---|---|
| 587d7b8a367417b2b2512b4d | Use Destructuring Assignment to Pass an Object as a Function's Parameters | 1 | 使用解构分配将对象作为函数的参数传递 | 
Description
const profileUpdate =(profileData)=> {这有效地破坏了发送到函数中的对象。这也可以就地完成:
const {name,age,nationality,location} = profileData;
//用这些变量做点什么
}
const profileUpdate =({name,age,nationality,location})=> {这将删除一些额外的行,使我们的代码看起来整洁。这具有额外的好处,即不必操纵函数中的整个对象;只有所需的字段才会复制到函数内部。
/ *用这些字段做某事* /
}
Instructions
half的参数内使用解构赋值,仅在函数内发送max和min 。 Tests
tests:
  - text: <code>stats</code>应该是一个<code>object</code> 。
    testString: 'assert(typeof stats === "object", "<code>stats</code> should be an <code>object</code>.");'
  - text: <code>half(stats)</code>应为<code>28.015</code>
    testString: 'assert(half(stats) === 28.015, "<code>half(stats)</code> should be <code>28.015</code>");'
  - text: 使用了解构。
    testString: 'getUserInput => assert(getUserInput("index").match(/\(\s*\{\s*\w+\s*,\s*\w+\s*\}\s*\)/g), "Destructuring was used.");'
Challenge Seed
const stats = {
  max: 56.78,
  standard_deviation: 4.34,
  median: 34.54,
  mode: 23.87,
  min: -0.75,
  average: 35.85
};
const half = (function() {
  "use strict"; // do not change this line
  // change code below this line
  return function half(stats) {
    // use function argument destructuring
    return (stats.max + stats.min) / 2.0;
  };
  // change code above this line
})();
console.log(stats); // should be object
console.log(half(stats)); // should be 28.015
Solution
// solution required