These functions are equivalent to PHP’s trim() and nl2br() function written in Javascript and are most useful in working with formatting text inputs and textareas values.Trim() strips whitespaces from the beginning and end of a string and nl2br() inserts HTML line breaks (<br />) and replaces newlines or carriage returns(Enter key) in a string.

The function:

function trimStr(input_string)
{
return input_string.replace(/^\s+|\s+$/g, ”);
}

function nl2brStr(input_string)
{
return input_string.replace(/(\r\n|\r|\n)/g, “<br />”);
}

Usage:

You can use the functions individually or by joining them together.See the demo for sample implementations by clicking here.