While learning JavaScript, I did not get why the output when we print the array returned of the Sting.split() method (with regular expression as an argument) is as explained below.
var colorString = "red,blue,green,yellow";
var colors = colorString.split(/[^\,]+/);
document.write(colors); //this print 7 times comma: ,,,,,,,
However when I print individual element of the array colors, it prints an empty string, three commas and an empty string:
document.write(colors[0]); //empty string
document.write(colors[1]); //,
document.write(colors[2]); //,
document.write(colors[3]); //,
document.write(colors[4]); //empty string
document.write(colors[5]); //undefined
document.write(colors[6]); //undefined
Then, why printing the array directly gives seven commas.
Though I think its correct to have three commas in the second output, I did not get why there is a starting (at index 0) and ending empty string (at index 4).
Please explain I am screwed up here.
