使用正则表达式拆分字符串，以便它将返回整数和十进制数

Question

I am in the middle of a project where in the beginning I had the following string <=10 & <20 and I want to split this string so it gives the following results ('<=' '10' '<' '20') the & is irrelevant because I deal with that in a different area of my code!

this is the solution I have when it is whole numbers

.match(/(([<=>]+)|(\d+))/ig) - result: '<=' '10' '<' '20'

But the string can also have negative numbers <=1.2 & <2.2 and the results required from this would be ('<=' '1.2' '<' '2.2'). So how would I update the .match above to handle both scenarios.

Answer 1

To handle the dot, use a class containing both the digits and the dot : [\\d.] . You may also remove the superfluous parenthesis :

/([<=>]+)|([\d.]+)/ig

Example :

">= 2.2 & < 3.3".match(/([<=>]+)|([\d.]+)/ig)

gives

[">=", "2.2", "<", "3.3"]