How can I parse a CSV string with JavaScript, which contains comma in data?

Question

I have the following type of string

var string = "\'string, duppi, du\', 23, lala"

I want to split the string into an array on each

Answer 1

According to this blog post, this function should do it:

String.prototype.splitCSV = function(sep) {
  for (var foo = this.split(sep = sep || ","), x = foo.length - 1, tl; x >= 0; x--) {
    if (foo[x].replace(/'\s+$/, "'").charAt(foo[x].length - 1) == "'") {
      if ((tl = foo[x].replace(/^\s+'/, "'")).length > 1 && tl.charAt(0) == "'") {
        foo[x] = foo[x].replace(/^\s*'|'\s*$/g, '').replace(/''/g, "'");
      } else if (x) {
        foo.splice(x - 1, 2, [foo[x - 1], foo[x]].join(sep));
      } else foo = foo.shift().split(sep).concat(foo);
    } else foo[x].replace(/''/g, "'");
  } return foo;
};

You would call it like so:

var string = "'string, duppi, du', 23, lala";
var parsed = string.splitCSV();
alert(parsed.join("|"));

This jsfiddle kind of works, but it looks like some of the elements have spaces before them.