# compile-time error

[JS](..) ⟩ [error]() ⟩ compile-time

{% hint style="info" %}
errors occurred <mark style="color:yellow;">**while**</mark> [compiling](../compile) (before the code begins to run).
{% endhint %}

{% tabs %}
{% tab title="🔴 主題" %}
* [early-errors](compile/early-errors "mention") - erros on [parsing](../compile/parsing "mention") stage.
* [syntax](syntax "mention") ⟩
  * [duplicate-parameter](syntax/duplicate-parameter "mention")
{% endtab %}
{% endtabs %}
