[Solved] Remove “_100” or “_150” or “_num” alone from the end of string [duplicate]

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Please check the following snippet:

const s="marks_old_100";

// remove any number
console.log(s.replace(/_[0-9]+$/, ''));

// remove three digit number
console.log(s.replace(/_[0-9]{3}$/, ''));

// remove _100, _150, _num
console.log(s.replace(/_(100|150|num)$/, ''));

solved Remove “_100” or “_150” or “_num” alone from the end of string [duplicate]