var my_str="Welcome to www.plus2net.com"
document.write(my_str.substr(3))
The output will be come to www.plus2net.com
Now let us specify the total value and see the output.
var my_str="Welcome to www.plus2net.com"
document.write(my_str.substr(3,7))
The output will be come to
You can see we got the output from the 3rd position till we get required 7 chars.
We can collect part of a string by using substr JavaScript string function. Here we can supply start location and total number of char from the start location ( optional ) of the string and we can get the total string within these start and total values.
Here is the syntax
my_string.substr('start_value','total_value')
start_value and total_value are optional.
If both values are not given the full string is returned.