JavaScript Statement document.write（“ - 10.0/0）is”+ 10.0/0 +'<br>'）;

Question

我希望答案为-Infinity，但我得到Infinity作为答案，这些是我测试过的其他陈述。

document.write("10/0 is "+ 10/0+'<br>'); 
 
document.write("-10/0 is "+ -10/0+'<br>'); 
 
document.write("10.0/0 is " +10.0/0+'<br>'); 
 
document.write("-10.0/0) is " +10.0/0+'<br>');/* ** */ 
 
    document.write("0/0 is "+0/0+'<br>');

所有上述表述根据的JavaScript这样

10/0 is Infinity 
-10/0 is -Infinity 
10.0/0 is Infinity 
-10.0/0) is Infinity 
0/0 is NaN 

，除了一个在问题的规则得到完美的结果，kiindly调查一下感谢。

Answer 1

document.write("-10.0/0 is " + (-10.0/0) + '<br>');