Split Javascript String With Conditions

I can separate a string by comma (,) in JavaScript with split. My string is as follows: 'Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso' The resul

Solution 1:

Assuming that there are no unpaired or nested {}, you can use a (?![^{}]*}) look-ahead to make sure there is no closing } after the comma:

\s*,\s*(?![^{}]*})

See the regex demo

And a snippet:

var re = /\s*,\s*(?![^{}]*})/g; 
var str = 'Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso';
var res = str.split(re);
for (var i=0; i<res.length; i++) {
  document.write(res[i]+ "<br/>");
}

The \s* are used to trim the resulting array entries.

Solution 2:

Please find below code snippet:

var arr = "Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso".split(/\s*,\s*(?![^{}]*})/g);
console.log(arr);