英文:
How to create a function that creates N(numbers) of objects with a N properties?
问题
我正在尝试在JS和Go中创建一个函数，用于创建具有N个属性的N个对象。
我想要一个函数，返回N个具有N个属性的对象。目前我有以下代码：
function objects(name, age, idioms, school) {
this.name = name;
this.age = age;
this.idioms = idioms;
this.school = school;
}
我甚至不知道如何在Go中实现这个功能。
英文:
I'm trying to make a function in JS, also in Go, to make N objects with N properties.
I want a function that returns N objects with N properties. So for I got this:
function objects(name, age, idioms,school) {
this.name = name;
this.age = age;
this.idioms= idioms;
this.school = school;
}
I don't even know how to do this in Go.
答案1
得分: 2
这只是一个关于在Go语言中使用maps的简单示例。您还可以使用类似的逻辑，使用具有固定属性的structs。该函数接受一个整数值N和一个字符串数组，这些字符串数组是属性。
package main
import (
"fmt"
)
func createDynamicMap(n int, pr []string) ([]map[string]interface{}) {
var listOfMap []map[string]interface{}
for i := 0; i < n; i++ {
dm := make(map[string]interface{})
for _, v := range pr {
if _, ok := dm[v]; !ok {
dm[v] = nil // 所有属性都初始化为nil
}
}
listOfMap = append(listOfMap, dm)
}
return listOfMap
}
func main() {
dynamicMap := createDynamicMap(10,[]string{"name","age","gender"})
fmt.Println(len(dynamicMap))
}
以上是代码示例。
英文:
This is just an simple example with maps in golang. You can also use a similar logic with using structs with fixed props. The function takes an int value N, and a string array which are the props.
package main
import (
"fmt"
)
func createDynamicMap(n int, pr []string) ([]map[string]interface{}) {
var listOfMap []map[string]interface{}
for i := 0; i < n; i++ {
dm := make(map[string]interface{})
for _, v := range pr {
if _, ok := dm[v]; !ok {
dm[v] = nil // all props initialised as nil
}
}
listOfMap = append(listOfMap, dm)
}
return listOfMap
}
func main() {
dynamicMap := createDynamicMap(10,[]string{"name","age","gender"})
fmt.Println(len(dynamicMap))
}
答案2
得分: 1
我无法回答关于Golang部分的问题，但对于JavaScript部分，最好是使用类（class）创建新的对象实例。首先创建一个类，然后通过循环遍历对象的属性（可以使用Object.entries方法），并在新的类实例中进行实例化。
以下是示例代码：
class Creator {
// args可以是一个具有任意数量属性的对象
constructor(args) {
// 只需遍历属性并将每个值分配给实例
Object.entries(args).forEach(([key, value]) => {
this[key] = value;
});
};
}
const obj = { name: 'Bob', age: 2, idioms: 'etc', school: 'Grange Hill' };
const obj2 = { name: 'Steve', job: 'Farmer' };
console.log(new Creator(obj));
console.log(new Creator(obj2));
希望对你有帮助！
英文:
I can't answer the Golang part, but for the JavaScript you'd be better off making new object instances from a class. Create the class, and then pass in objects the properties of which you can loop over and instantiate in the new class instance.
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
class Creator {
// args can be an object with n amount of
// properties
constructor(args) {
// Just loop over the entries and assign each value
// to the instance
Object.entries(args).forEach(([key, value]) => {
this[key] = value;
});
};
}
const obj = { name: 'Bob', age: 2, idioms: 'etc', school: 'Grange Hill' };
const obj2 = { name: 'Steve', job: 'Farmer' };
console.log(new Creator(obj));
console.log(new Creator(obj2));
<!-- end snippet -->
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