nodejs substr from specific string code example
Example 1: js substring
// the substring method returns a string out of another string
const str = 'Mozilla';
console.log(str.substring(1, 3));
// expected output: "oz"
console.log(str.substring(2));
// expected output: "zilla"
Example 2: cut string from string javascript
var ret = "data-123".replace('data-','');
console.log(ret); //prints: 123