I'm using this regex
/(NaN| {2}|^$)/.test(a)
It work perfectly in developer mode. In production mode, javascript would be minified, so the white space has been removed, the regex would be
/(NaN|{2}|^$)/.test(a) => wrong
How do I remain correct above regex with minify javascript?
You can match a space using a regex escape like
\x20
\u0020
See a demo below:
const a = "- -";
console.log(/(NaN| {2}|^$)/.test(a));
console.log(/(NaN|\x20{2}|^$)/.test(a));
console.log(/(NaN|\u0020{2}|^$)/.test(a));