JS Useful References
JS Useful Resources
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This method extracts a section of a string and returns a new string.
string.slice( beginslice [, endSlice] );
Here is the detail of parameters:
beginSlice : The zero-based index at which to begin extraction.
endSlice : The zero-based index at which to end extraction. If omitted, slice extracts to the end of the string.
Note: As a negative index, endSlice indicates an offset from the end of the string. string.slice(2,-1) extracts the third character through the second to last character in the string.
var str = "Apples are round, and apples are juicy.";
var sliced = str.slice(3, -2);
document.write( sliced );
This will produce following result:
les are round, and apples are juic
To understand it in better way you can Try it yourself.