javascript - 如何在javascript中检查更大的值？

Question

有两个值“a”和“b”。我需要检查 a 是否大于 'b'

如果它是一个大值，则检查较大的值。但这里的区别仅在于点值。它忽略点值

var a='20.796';
var b='20.190';
if (parseInt(a) > parseInt(b))
 {
alert("function can work");
return false;
}

Answer 1

您将数字解析为 integers 。你想要的是有理数/实数。使用parseFloat :

var a = '20.796';
var b = '20.190';
console.log(parseInt(a,10),parseInt(b,10));
console.log(parseFloat(a),parseFloat(b));

结果:

20 20
20.769 20.190

Also, please always use the radix argument if you use parseInt(string [, radix]).

Furthermore - if a and b are numbers, don't save their values in a string. It's much easier to save their values instead:

var a = 20.796;
var b = 20.190;