function compute () {
                // set value
                util.forEach(expressions, function(exp, index) {
                    var v = that.$exec(exp)
                    if (!v[0]) caches[index] = v[1]
                })
                // get content
                var str = ''
                util.forEach(parts, function(item, index) {
                    str += emptyStr(item)
                    if (index < expressions.length) {
                        str += emptyStr(caches[index])
                    }
                })
                return Expression.unveil(str)
            }
function compute () {
                
                util.forEach(expressions, function(exp, index) {
                    var v = that.$exec(exp)
                    if (!v[0]) caches[index] = v[1]
                })
                
                var str = ''
                util.forEach(parts, function(item, index) {
                    str += emptyStr(item)
                    if (index < expressions.length) {
                        str += emptyStr(caches[index])
                    }
                })
                return Expression.unveil(str)
            }
function compute ( ) { // set value util . forEach ( expressions , function ( exp , index ) { var v = that . $exec ( exp ) if ( ! v [ 0 ] ) caches [ index ] = v [ 1 ] } ) // get content var str = '' util . forEach ( parts , function ( item , index ) { str += emptyStr ( item ) if ( index < expressions . length ) { str += emptyStr ( caches [ index ] ) } } ) return Expression . unveil ( str ) }
Computed all expression and get concated result
Computed all expression and get concated result