What is the difference between .substr and .substring in javascript?

Answer 1

The difference is in the second argument. The second argument tosubstring is the index to stop at (but not include), but the second argument to substr is the maximum length to return. You can remember substringtakes indices, as does yet another string extraction method, slice.

Links?

https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/substr

https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/substring

//I got this from Stack Overflow

Javascript has two string methods (substr and substring) that appear to be identical at first glance; they both return a substring from a given string. So what's the difference? Their second parameters, while both numbers, are expecting two different things.

When using substring the second parameter is the first index not to include:

var s = "string"; s.substring(1, 3); // would return 'tr' var s = "another example"; s.substring(3, 7); // would return 'ther'

When using substr the second parameter is the number of characters to include in the substring:

var s = "string"; s.substr(1, 3); // would return 'tri' var s = "another example"; s.substr(3, 7); // would return 'ther ex'
//got this from Nathan Hoad

Answer 2

@vitaliy angelov are you using any social media