String split returns an array with two elements instead of one

Question

I don\'t understand this behaviour:

var string = \'a,b,c,d,e:10.\';
var array = string.split (\'.\');

I expect this:

consol         


        

Answer 1

https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/String/split

trim the trailing period first

'a,b,c,d,e:10.'.replace(/\.$/g,''); // gives "a,b,c,d,e:10"

then split the string

var array = 'a,b,c,d,e:10.'.replace(/\.$/g,'').split('.');

console.log (array.length); // 1