I searched the web and came up with: /(^100(\.0{1,2})?$)|(^([1-9]([0-9])?|0)(\.[0-9]{1,2})?$)/
我在网上搜索并提出：/（^ 100（\。0 {1,2}）？$）|（^（[1-9]（[0-9]）？| 0）（\。[ 0-9] {1,2}）？$）/
The problem is it accepts 0.
问题是它接受0。
2 个解决方案
#1
4
Perhaps you are thinking about the problem wrongly. A better method if possible would be to convert the string to a double and perform the check using arithmetic operators.
也许你错误地思考这个问题。如果可能的话，更好的方法是将字符串转换为double并使用算术运算符执行检查。
const examplePercentage = '0.5%';
const percentageAsFloat = parseFloat(examplePercentage); // 0.5
const isValid = percentageAsFloat > 0 && percentageAsFloat <= 100; // true
#2
2
Try this one:
试试这个：
^0*(100(\.0{1,2})?|[1-9][0-9]?(\.[0-9]{1,2})?|0\.(0[1-9]|[1-9][0-9]?))$
It handles >= 1 different from < 1.
它处理> = 1与<1不同。
But I would go with parsing the number and checking it's value.
但我会解析数字并检查它的值。
#1
4
Perhaps you are thinking about the problem wrongly. A better method if possible would be to convert the string to a double and perform the check using arithmetic operators.
也许你错误地思考这个问题。如果可能的话，更好的方法是将字符串转换为double并使用算术运算符执行检查。
const examplePercentage = '0.5%';
const percentageAsFloat = parseFloat(examplePercentage); // 0.5
const isValid = percentageAsFloat > 0 && percentageAsFloat <= 100; // true
#2
2
Try this one:
试试这个：
^0*(100(\.0{1,2})?|[1-9][0-9]?(\.[0-9]{1,2})?|0\.(0[1-9]|[1-9][0-9]?))$
It handles >= 1 different from < 1.
它处理> = 1与<1不同。
But I would go with parsing the number and checking it's value.
但我会解析数字并检查它的值。