求个js匹配正则表达式

Question

如果不要求逗号之间必须有数字/^\d+[,\d]*(?!$)\d*$/gi

Answer 1

<script type="text/javascript">
var reg = /^((\d+,)*\d+)*$/;
var a = "",
    b = 123,
    c = "12,23,3",
    a2 = ",23,",
    b2 = ",123",
    c2 = "12,",
    d2 = ",";
console.log(
    reg.test(a),
    reg.test(b),
    reg.test(c),
    reg.test(a2),
    reg.test(b2),
    reg.test(c2),
    reg.test(d2)
)
</script>