diff --git a/lib/tput.js b/lib/tput.js
index 6be45ee..4cec116 100644
--- a/lib/tput.js
+++ b/lib/tput.js
@@ -627,8 +627,8 @@ Tput.prototype._compile = function(info, key, str) {
   }
 
   var tkey = info.name + '.' + key
-    , header = 'var v, dyn = {}, stat = {}, stack = [], out = "";'
-    , footer = ';return out;'
+    , header = 'var v, dyn = {}, stat = {}, stack = [], out = [];'
+    , footer = ';return out.join("");'
     , code = header
     , val = str
     , buff = ''
@@ -661,11 +661,7 @@ Tput.prototype._compile = function(info, key, str) {
 
   function echo(c) {
     if (c === '""') return;
-    if (/^"([^"]|\\")+"$/.test(c)) {
-      expr('out += ' + c);
-    } else {
-      expr('out += (' + c + ' || "")');
-    }
+    expr('out.push(' + c + ')');
   }
 
   function print(c) {
@@ -930,7 +926,7 @@ Tput.prototype._compile = function(info, key, str) {
       // Perhaps implement a "pushed" counter from the time the if statement
       // is added, to the time the then statement is added, and pop off
       // the appropriate number of elements.
-      // while (pushed--) expr('(v = stack.pop)');
+      // while (pushed--) expr('stack.pop()');
       stmt(') {');
       continue;
     }
@@ -980,14 +976,14 @@ Tput.prototype._compile = function(info, key, str) {
   v = code.slice(header.length, -footer.length);
   if (!v.length) {
     code = 'return "";';
-  } else if (v = /^out \+= ("(?:[^"]|\\")+")$/.exec(v)) {
+  } else if (v = /^out\.push\(("(?:[^"]|\\")+")\)$/.exec(v)) {
     code = 'return ' + v[1] + ';';
   } else {
-    // Turn `(stack.push(v = params[0]), v),out += (stack.pop() || "")`
-    // into `out += (params[0] || "")`.
+    // Turn `(stack.push(v = params[0]), v),out.push(stack.pop())`
+    // into `out.push(params[0])`.
     code = code.replace(
-      /\(stack\.push\(v = params\[(\d+)\]\), v\),out \+= \(stack\.pop\(\) \|\| ""\)/g,
-      'out += (params[$1] || "")');
+      /\(stack\.push\(v = params\[(\d+)\]\), v\),out\.push\(stack\.pop\(\)\)/g,
+      'out.push(params[$1])');
 
     // Remove unnecessary variable initializations.
     v = code.slice(header.length, -footer.length);
@@ -996,8 +992,10 @@ Tput.prototype._compile = function(info, key, str) {
     if (!~v.indexOf('stat')) code = code.replace('stat = {}, ', '');
     if (!~v.indexOf('stack')) code = code.replace('stack = [], ', '');
 
-    // Turn `var out = "";out += "foo",` into `var out = "foo";`.
-    code = code.replace(/out = "";out \+= ("(?:[^"]|\\")+"),/, 'out = $1;');
+    // Turn `var out = [];out.push("foo"),` into `var out = ["foo"];`.
+    code = code.replace(
+      /out = \[\];out\.push\(("(?:[^"]|\\")+")\),/,
+      'out = [$1];');
   }
 
   // Terminfos `wyse350-vb`, and `wy350-w`
diff --git a/test/terminfo b/test/terminfo
index 7540c8f..bd3a944 100644
--- a/test/terminfo
+++ b/test/terminfo
@@ -431,7 +431,7 @@ return "\x07";
 Compiling carriage_return: "\r"
 return "\r";
 Compiling change_scroll_region: "\u001b[%i%p1%d;%p2%dr"
-var out = "\x1b[";(params[0]++, params[1]++),out += (params[0] || ""),out += ";",out += (params[1] || ""),out += "r";return out;
+var out = ["\x1b["];(params[0]++, params[1]++),out.push(params[0]),out.push(";"),out.push(params[1]),out.push("r");return out.join("");
 Compiling clear_all_tabs: "\u001b[3g"
 return "\x1b[3g";
 Compiling clear_screen: "\u001b[H\u001b[2J"
@@ -441,9 +441,9 @@ return "\x1b[K";
 Compiling clr_eos: "\u001b[J"
 return "\x1b[J";
 Compiling column_address: "\u001b[%i%p1%dG"
-var out = "\x1b[";(params[0]++, params[1]++),out += (params[0] || ""),out += "G";return out;
+var out = ["\x1b["];(params[0]++, params[1]++),out.push(params[0]),out.push("G");return out.join("");
 Compiling cursor_address: "\u001b[%i%p1%d;%p2%dH"
-var out = "\x1b[";(params[0]++, params[1]++),out += (params[0] || ""),out += ";",out += (params[1] || ""),out += "H";return out;
+var out = ["\x1b["];(params[0]++, params[1]++),out.push(params[0]),out.push(";"),out.push(params[1]),out.push("H");return out.join("");
 Compiling cursor_down: "\n"
 return "\n";
 Compiling cursor_home: "\u001b[H"
@@ -483,7 +483,7 @@ return "\x1b[7m";
 Compiling enter_underline_mode: "\u001b[4m"
 return "\x1b[4m";
 Compiling erase_chars: "\u001b[%p1%dX"
-var out = "\x1b[";out += (params[0] || ""),out += "X";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("X");return out.join("");
 Compiling exit_alt_charset_mode: "\u001b(B"
 return "\x1b(B";
 Compiling exit_attribute_mode: "\u001b(B\u001b[m"
@@ -555,25 +555,25 @@ return "\x1b[?1034l";
 Compiling meta_on: "\u001b[?1034h"
 return "\x1b[?1034h";
 Compiling parm_dch: "\u001b[%p1%dP"
-var out = "\x1b[";out += (params[0] || ""),out += "P";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("P");return out.join("");
 Compiling parm_delete_line: "\u001b[%p1%dM"
-var out = "\x1b[";out += (params[0] || ""),out += "M";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("M");return out.join("");
 Compiling parm_down_cursor: "\u001b[%p1%dB"
-var out = "\x1b[";out += (params[0] || ""),out += "B";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("B");return out.join("");
 Compiling parm_ich: "\u001b[%p1%d@"
-var out = "\x1b[";out += (params[0] || ""),out += "@";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("@");return out.join("");
 Compiling parm_index: "\u001b[%p1%dS"
-var out = "\x1b[";out += (params[0] || ""),out += "S";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("S");return out.join("");
 Compiling parm_insert_line: "\u001b[%p1%dL"
-var out = "\x1b[";out += (params[0] || ""),out += "L";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("L");return out.join("");
 Compiling parm_left_cursor: "\u001b[%p1%dD"
-var out = "\x1b[";out += (params[0] || ""),out += "D";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("D");return out.join("");
 Compiling parm_right_cursor: "\u001b[%p1%dC"
-var out = "\x1b[";out += (params[0] || ""),out += "C";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("C");return out.join("");
 Compiling parm_rindex: "\u001b[%p1%dT"
-var out = "\x1b[";out += (params[0] || ""),out += "T";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("T");return out.join("");
 Compiling parm_up_cursor: "\u001b[%p1%dA"
-var out = "\x1b[";out += (params[0] || ""),out += "A";return out;
+var out = ["\x1b["];out.push(params[0]),out.push("A");return out.join("");
 Compiling print_screen: "\u001b[i"
 return "\x1b[i";
 Compiling prtr_off: "\u001b[4i"
@@ -587,7 +587,7 @@ return "\x1b[!p\x1b[?3;4l\x1b[4l\x1b>";
 Compiling restore_cursor: "\u001b8"
 return "\x1b8";
 Compiling row_address: "\u001b[%i%p1%dd"
-var out = "\x1b[";(params[0]++, params[1]++),out += (params[0] || ""),out += "d";return out;
+var out = ["\x1b["];(params[0]++, params[1]++),out.push(params[0]),out.push("d");return out.join("");
 Compiling save_cursor: "\u001b7"
 return "\x1b7";
 Compiling scroll_forward: "\n"
@@ -595,7 +595,7 @@ return "\n";
 Compiling scroll_reverse: "\u001bM"
 return "\x1bM";
 Compiling set_attributes: "%?%p9%t\u001b(0%e\u001b(B%;\u001b[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m"
-var v, stack = [], out = "";;if ((stack.push(v = params[8]), v)) {out += "\x1b(0"} else {out += "\x1b(B"}out += "\x1b[0";if ((stack.push(v = params[5]), v)) {out += ";1"};if ((stack.push(v = params[1]), v)) {out += ";4"};if ((stack.push(v = params[0]), v),(stack.push(v = params[2]), v),(stack.push(v = (stack.pop() | stack.pop()) || 0), v)) {out += ";7"};if ((stack.push(v = params[3]), v)) {out += ";5"};if ((stack.push(v = params[6]), v)) {out += ";8"}out += "m";return out;
+var v, stack = [], out = [];;if ((stack.push(v = params[8]), v)) {out.push("\x1b(0")} else {out.push("\x1b(B")}out.push("\x1b[0");if ((stack.push(v = params[5]), v)) {out.push(";1")};if ((stack.push(v = params[1]), v)) {out.push(";4")};if ((stack.push(v = params[0]), v),(stack.push(v = params[2]), v),(stack.push(v = (stack.pop() | stack.pop()) || 0), v)) {out.push(";7")};if ((stack.push(v = params[3]), v)) {out.push(";5")};if ((stack.push(v = params[6]), v)) {out.push(";8")}out.push("m");return out.join("");
 Compiling set_tab: "\u001bH"
 return "\x1bH";
 Compiling tab: "\t"
@@ -739,7 +739,7 @@ return "\x1b[1;4R";
 Compiling clr_bol: "\u001b[1K"
 return "\x1b[1K";
 Compiling user6: "\u001b[%i%d;%dR"
-var stack = [], out = "\x1b[";(params[0]++, params[1]++),out += (stack.pop() || ""),out += ";",out += (stack.pop() || ""),out += "R";return out;
+var stack = [], out = ["\x1b["];(params[0]++, params[1]++),out.push(stack.pop()),out.push(";"),out.push(stack.pop()),out.push("R");return out.join("");
 Compiling user7: "\u001b[6n"
 return "\x1b[6n";
 Compiling user8: "\u001b[?1;2c"
@@ -749,15 +749,15 @@ return "\x1b[c";
 Compiling orig_pair: "\u001b[39;49m"
 return "\x1b[39;49m";
 Compiling set_foreground: "\u001b[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m"
-var v, stack = [], out = "";out += "\x1b[3";if ((stack.push(v = params[0]), v),(stack.push(v = 1), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "4"} else if ((stack.push(v = params[0]), v),(stack.push(v = 3), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "6"} else if ((stack.push(v = params[0]), v),(stack.push(v = 4), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "1"} else if ((stack.push(v = params[0]), v),(stack.push(v = 6), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "3"} else {out += (params[0] || "")}out += "m";return out;
+var v, stack = [], out = [];out.push("\x1b[3");if ((stack.push(v = params[0]), v),(stack.push(v = 1), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("4")} else if ((stack.push(v = params[0]), v),(stack.push(v = 3), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("6")} else if ((stack.push(v = params[0]), v),(stack.push(v = 4), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("1")} else if ((stack.push(v = params[0]), v),(stack.push(v = 6), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("3")} else {out.push(params[0])}out.push("m");return out.join("");
 Compiling set_background: "\u001b[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m"
-var v, stack = [], out = "";out += "\x1b[4";if ((stack.push(v = params[0]), v),(stack.push(v = 1), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "4"} else if ((stack.push(v = params[0]), v),(stack.push(v = 3), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "6"} else if ((stack.push(v = params[0]), v),(stack.push(v = 4), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "1"} else if ((stack.push(v = params[0]), v),(stack.push(v = 6), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out += "3"} else {out += (params[0] || "")}out += "m";return out;
+var v, stack = [], out = [];out.push("\x1b[4");if ((stack.push(v = params[0]), v),(stack.push(v = 1), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("4")} else if ((stack.push(v = params[0]), v),(stack.push(v = 3), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("6")} else if ((stack.push(v = params[0]), v),(stack.push(v = 4), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("1")} else if ((stack.push(v = params[0]), v),(stack.push(v = 6), v),(stack.push(v = (stack.pop() === stack.pop()) || 0), v)) {out.push("3")} else {out.push(params[0])}out.push("m");return out.join("");
 Compiling key_mouse: "\u001b[M"
 return "\x1b[M";
 Compiling set_a_foreground: "\u001b[3%p1%dm"
-var out = "\x1b[3";out += (params[0] || ""),out += "m";return out;
+var out = ["\x1b[3"];out.push(params[0]),out.push("m");return out.join("");
 Compiling set_a_background: "\u001b[4%p1%dm"
-var out = "\x1b[4";out += (params[0] || ""),out += "m";return out;
+var out = ["\x1b[4"];out.push(params[0]),out.push("m");return out.join("");
 Compiling memory_lock: "\u001bl"
 return "\x1bl";
 Compiling memory_unlock: "\u001bm"