Slice Example

                                    //The slice() method extracts a section of a string and returns 
//it as a new string, without modifying the original string.

                                    const string="Hi my name is mezen";
string.slice (2); // return string without the character of index 2;
string.slice (6); // return string without the character of index 6;

string.slice (3,7) /* return 'my na' (m of index 3; a of index 7) including the
                      blank spaces */

                                    JavaScript Array slice() Method The slice() method returns the selected elements in an array, as a new array object. The slice() method selects the elements starting at the given start argument, and ends at, but does not include, the given end argument. Note: The original array will not be changed.

                                    /*Use string concatenation and two slice() methods to print
'JS' from 'JavaScript'.*/

let language = 'JavaScript';
console.log(language.slice(0,1)+language.slice(4,5));

//JS

                                    var str1 = "Apple, Banana, Kiwi";

var res1 = str1.slice(7, 13);
var res2 = str1.slice(-12, -6);
var res3 = str1.slice(7);
var res4 = str1.slice(-12);
var res5 = str1.substring(7, 13); //substring() cannot accept negative indexes like slice.
var res6 = str1.substr(7, 9); // substr(start, length) is similar to slice(). second parameter of substr is length of string

document.write("<br>" + "slice:", res1);
document.write("<br>" + "slice -ve pos:", res2);
document.write("<br>" + "slice with only start pos:", res3);
document.write("<br>" + "slice with only -ve start pos", res4);
document.write("<br>" + "substring:", res5);
document.write("<br>" + "substr:", res6);