nl_tokens: The base implementation of _ . toString which doesn t convert nullish values to empty strings .
pl_tokens: function baseToString ( value ) { // Exit early for strings to avoid a performance hit in some environments. if ( typeof value == 'string' ) { return value ; } if ( isArray ( <mask> ) ) { // Recursively convert values (susceptible to call stack limits). return arrayMap ( value , baseToString ) + '' ; } if ( isSymbol ( value ) ) { return symbolToString ? symbolToString . call ( value ) : '' ; } var result = ( value + '' ) ; return ( result == '0' && ( 1 / value ) == - INFINITY ) ? '-0' : result ; }