I have string with \n
First\nSecond\n\nThird\n\n\n\n
I want after replace (\n >=2), it's
First\nSecond\nThird\n\n
I would appreciate some help. Many thanks!
Just replace every two \n with a single \n:
s.replace(/\n\n/g, '\n')
const s = 'First\nSecond\n\nThird\n\n\n\n'
console.log(JSON.stringify(s.replace(/\n\n/g, '\n')))