How to make log with error for dear ImGui

Question

I can't make log info in dear ImGui

I try this

    "ImGui.Text(`Welcome to GRAPE CHEAT`);",
    "",
    "if (ImGui.Button(\"Enter Key\"))",
    "{",
    "\t if(buff == \"DEBUG_FOREVER\")",
    "{",
    "\t alert(\"thx for buy cheat\");",
    "} else {",
    "\t alert(\"wrong key\");",
    "\t /* static */ let outputer = \"Wrong Key\";",
    "}",
    "}",
    "ImGui.Text(outputer);",
    "if (ImGui.Button(\"Get Key\"))",
    "{",
    "\t window.location.href = \"http://google.com\";",
    "}",
    "",
    "ImGui.InputText(\"key\", (_ = buff) => buff = _, 256);",
    ""

this before click enter key nothing changed after that