Код:
a = "a = \"\"\nb = \"\";\n for(var i = 0; i < a.length; i++)\n{\n if(a.charAt(i) == \"\\\"\")\n b += \"\\\\\";\n if(a.charAt(i) == \"\\\\\")\n b += \"\\\\\";\n if(a.charAt(i) == \"\\n\")\n b += \"\\\\n\";\n else\n b += a.charAt(i);\n}\n trace(a.substr(0, 5) + b + a.substr(5, a.length))"
b = "";
for(var i = 0; i < a.length; i++)
{
if(a.charAt(i) == "\"")
b += "\\";
if(a.charAt(i) == "\\")
b += "\\";
if(a.charAt(i) == "\n")
b += "\\n";
else
b += a.charAt(i);
}
trace(a.substr(0, 5) + b + a.substr(5, a.length))