为什么是null＆lt; 1在JavaScript中是真的吗？

Question

为什么null < 1以及以下几项比较在JavaScript中评估为true？

＆＃13;

＆＃13;

document.write("null == 1 is " + (null == 1) + "<br />");
document.write("null == 0 is " + (null == 0) + "<br />");
document.write("<hr />");
document.write("null < 1 is " + (null < 1) + " ???<br />");
document.write("null >= 1 is " + (null >= 1) + "<br />");
document.write("<hr />");
document.write("null < 0 is " + (null < 0) + "<br />");
document.write("null >= 0 is " + (null >= 0) + " ???<br />");
document.write("<hr />");
document.write("null > 1 is " + (null > 1) + "<br />");
document.write("null <= 1 is " + (null <= 1) + " ???<br />");
document.write("<hr />");
document.write("null > 0 is " + (null > 0) + "<br />");
document.write("null <= 0 is " + (null <= 0) + " ???<br />");

＆＃13;

＆＃13;

＆＃13;