JS保留2位小数
调用方法示例:$('#count').html(toDecimal2(shuliang_count));
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | function toDecimal2(x) {
if (x != '' && !isNaN(x)) {
var f = parseFloat(x);
if (isNaN(f)) {
return false ;
}
var f = Math.round(x * 100) / 100;
var s = f.toString();
var rs = s.indexOf( '.' );
if (rs < 0) {
rs = s.length;
s += '.' ;
}
while (s.length <= rs + 2) {
s += '0' ;
}
return s;
} else {
return '' ;
}
}
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