如何创建字符串数组（使用字符串键）？

Question

转换这个PHP脚本为Javascript：

$ar = array(); 

// add dynamically new element to string array 
$ar['aaa'] = "Hello"; 
$ar['bbb'] = "World"; 
$ar['ccc'] = "Test!"; 

foreach($ar as $key => $val){ 
    print $key." => ".$val."\n"; 
} 

结果将是：

aaa => Hello 
bbb => World 
ccc => Test! 

谢谢！

Answer 1

使用对象而不是数组：[对象]

const obj = {} 

obj.aaa = "Hello" 
obj.bbb = "World" 
obj.ccc = "Test!" 

for (const property in obj) { 
    console.log(`${property} => ${obj[property]}`) 
}