Use at own risk. Programs haven't been thoroughly tested.

function: str_pad

Pad a string to a certain length with another string. Javascript clone of the PHP function str_pad. It acts exactly the same.

Info

@author Kevin van Zonneveld
@version 1.0
@link http://kevin.vanzonneveld.net
@param (string) pad_input The input string.
@param (string) pad_length If the value of pad_length is negative or less than the length of the input string, no padding takes place.
@param (string) pad_string Note: The pad_string may be truncated if the required number of padding characters can't be evenly divided by the pad_string's length.
@param (string) pad_type Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If pad_type is not specified it is assumed to be STR_PAD_RIGHT.

Example

Usage
input = "Alien";
str_pad(input, 10, "-=", STR_PAD_LEFT);

Outputs
"-=-=-Alien"

Source Code

download source
function str_pad (pad_input, pad_length, pad_string, pad_type) {
    if (pad_type != 'STR_PAD_LEFT' && pad_type != 'STR_PAD_RIGHT' && pad_type != 'STR_PAD_BOTH') {
        pad_type = 'STR_PAD_RIGHT';
    }
    if (pad_input.pad_length < pad_length) {
        pad_length = pad_length - pad_input.pad_length;
        if (pad_type == 'STR_PAD_LEFT') {
            pad_input = String(pad_string).str_repeat(pad_length) + pad_input;
        } else if (pad_type == 'STR_PAD_RIGHT') {
            pad_input = pad_input + String(pad_string).str_repeat(pad_length);
        } else if (pad_type == 'STR_PAD_BOTH') {
            pad_input = String(pad_string).str_repeat(pad_length / 2) + pad_input + String(pad_string).str_repeat(pad_length / 2);
        }
    }
    return pad_input;
}

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