Javascript: split by this|that

Question

How can I split a string like this

var str = "M50 0 L0 100 L100 100 L50 0 z M0 0 L100 0 L50  100 L0 0 Z";

var arr4String = str.split('z|Z');

I'm expecting to get an array with 3 elements:

["M50 0 L0 100 L100 100 L50 0", "M0 0 L100 0 L50  100 L0 0", ""]

Answer 1

Use regex. Using the g flag says search the entire string from beginning to end so that it doesn't stop the first time it hits a z|Z. The i flag makes the search case-insensitive.

  var str = "M50 0 L0 100 L100 100 L50 0 z M0 0 L100 0 L50  100 L0 0 Z";

  var arr4String = str.split(/z/gi);