以下代码有什么问题?
$(function() {
var ok = true;
for (var i = 0; i < 1000; i++) {
var x = 100; // if we use new Number(100) here, the test will pass
$.each([1,2], function(k) {
x -= 5.5; // if we use integer (or declare a variable with value 5.5 outside this scope), the test will pass
return false;
});
if (x + 5.5 != 100) {
fail();
}
}
});
此测试在所有浏览器中成功通过,但在 Safari 6 (6.0.2 (8536.26.17)) 中失败。代码有错误吗?还是浏览器的bug?这是 jsFiddle 上的示例。它输出:
OK: 94.5 + 5.5 = 100
FAIL: 95 + 5.5 = 100