slice method in js

1// array.slice(start, end)
2const FRUITS = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
3var citrus = FRUITS.slice(1, 3);
4// citrus => [ 'Orange', 'Lemon' ]
5
6// Negative values slice in the opposite direction
7var fromTheEnd = FRUITS.slice(-3, -1);
8// fromTheEnd => [ 'Lemon', 'Apple' ]

1//The slice() method extracts a section of a string and returns 
2//it as a new string, without modifying the original string.
3
4// same in array but you select elements not characters  
5
6
7const str = 'The quick brown fox jumps over the lazy dog.';
8
9console.log(str.slice(31));
10// expected output: "the lazy dog."
11
12console.log(str.slice(4, 19));
13// expected output: "quick brown fox"
14
15console.log(str.slice(-4));
16// expected output: "dog."
17
18console.log(str.slice(-9, -5));
19// expected output: "lazy"
20
21console.log(str.slice(0, 2)); 
22// expected output: "the"
23// Up to and including the last index!!!
24// Different for python. 

1var str1 = "Apple, Banana, Kiwi";
2
3var res1 = str1.slice(7, 13);
4var res2 = str1.slice(-12, -6);
5var res3 = str1.slice(7);
6var res4 = str1.slice(-12);
7var res5 = str1.substring(7, 13); //substring() cannot accept negative indexes like slice.
8var res6 = str1.substr(7, 9); // substr(start, length) is similar to slice(). second parameter of substr is length of string
9
10document.write("<br>" + "slice:", res1);
11document.write("<br>" + "slice -ve pos:", res2);
12document.write("<br>" + "slice with only start pos:", res3);
13document.write("<br>" + "slice with only -ve start pos", res4);
14document.write("<br>" + "substring:", res5);
15document.write("<br>" + "substr:", res6);

1/"slice() copies or extracts a given number of elements to a new array"/
2
3let weatherConditions = ['rain', 'snow', 'sleet', 'hail', 'clear'];
4
5let todaysWeather = weatherConditions.slice(1, 3);
6// todaysWeather equals ['snow', 'sleet'];
7// weatherConditions still equals ['rain', 'snow', 'sleet', 'hail', 'clear']

1//The slice() method extracts a section of a string and returns 
2//it as a new string, without modifying the original string.
3
4// same in array but you select elements not characters  
5
6
7const str = 'The quick brown fox jumps over the lazy dog.';
8
9console.log(str.slice(31));
10// expected output: "the lazy dog."
11
12console.log(str.slice(4, 19));
13// expected output: "quick brown fox"
14
15console.log(str.slice(-4));
16// expected output: "dog."
17
18console.log(str.slice(-9, -5));
19// expected output: "lazy"
20

1const string="Hi my name is mezen";
2string.slice (2); // return string without the character of index 2;
3string.slice (6); // return string without the character of index 6;
4
5string.slice (3,7) /* return 'my na' (m of index 3; a of index 7) including the
6                      blank spaces */