How to match a string from array of strings using javascript and regex?-CodePudding

Hi below is an array of strings,

const arr = [
    "list-domain/1/",
    "list-domain/1/list/1",
    "some-group/2/",
    "some-group/2/list/2",
    "list/3/",
    "list/3/item/1"
];

I want to return true if the string matches "list/1/" or "list-domain/2/list/2/" or "some-group/3/list/4"; so basically should return true if string starts with "list/1/" or has some string in front and ends with "/list/1/"

note: here the number after slash can be any number.

so for the above array expected output is true.

 const arr1 = [
    "list-domain/1/",
    "list-domain/1/list/1",
    "some-group/2/",
    "some-group/2/list/2",
];

for arr1 expected output true

 const arr2 = [
    "list-domain/1/",
    "list-domain/1/list/1/item/2",
    "some-group/2/",
];

for arr2 expected output is false.

i have tried something like below,

const foundMatch = arr.some(a=> new RegExp(/(\/list\/[0-9] )?\/$/g).test(a));

but this doesn't work

CodePudding user response：

Try this:

arr.some(a=> new RegExp(/(^list\/\d\/)|(list\/\d\/$)/).test(a));

If that's what you mean by:

If string starts with "list/1/" or has some string in front and ends with "list/1/".

CodePudding user response：

Is this what you want to have?

arr.some(a=> new RegExp(/list\/[0-9](\/)?$/g).test(a));

Your above all cases fulfills by this regex. If not you can put other test cases.