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JavaScript - Slice

slice() extracts a part of a string and returns the extracted part in a new string. The method takes 2 parameters: the starting index (position), and the ending index (position).

This example slices out a portion of a string from position 7 to position 13:


let str = "Apple, Banana, Kiwi";
document.getElementById("demo1").innerHTML = str.slice(7, 13);

If a parameter is negative, the position is counted from the end of the string. This example slices out a portion of a string from position -12 to position -6: 


let str2 = "Apple, Banana, Kiwi";
document.getElementById("demo2").innerHTML = str2.slice(-12, -6);

If you omit the second parameter, the method will slice out the rest of the string. 


let str3 = "Apple, Banana, Kiwi";
document.getElementById("demo3").innerHTML = str3.slice(4);