src/string/prepend.js
function prepend(str, prefix) {
    if (!str && str !== 0) {
        str = '';
    } else {
        str = str.toString();
    }
    return prefix + str;
}
function prepend(str, prefix) {
    if (!str && str !== 0) {
        str = '';
    } else {
        str = str.toString();
    }
    return prefix + str;
}
function prepend ( str , prefix ) { if ( ! str && str !== 0 ) { str = '' ; } else { str = str . toString ( ) ; } return prefix + str ; }
Prepends characters to a string.

{{ 'world' | prepend 'hello ' }} => 'hello world'
Prepends characters to a string .