add docs for ErrorEvent.lineno

files/en-us/web/api/errorevent/index.md

@@ -25,7 +25,7 @@ _Also inherits properties from its parent {{domxref("Event")}}_.
 - {{domxref("ErrorEvent.filename")}} {{ReadOnlyInline}}
   - : A string containing the name of the script file in which the error occurred.
 - {{domxref("ErrorEvent.lineno")}} {{ReadOnlyInline}}
-  - : An `integer` containing the line number of the script file on which the error occurred.
+  - : An integer containing the line number of the script file on which the error occurred.
 - {{domxref("ErrorEvent.colno")}} {{ReadOnlyInline}}
   - : An `integer` containing the column number of the script file on which the error occurred.
 - {{domxref("ErrorEvent.error")}} {{ReadOnlyInline}}

files/en-us/web/api/errorevent/lineno/index.md

@@ -0,0 +1,31 @@
+---
+title: "ErrorEvent: lineno property"
+short-title: lineno
+slug: Web/API/ErrorEvent/lineno
+page-type: web-api-instance-property
+browser-compat: api.ErrorEvent.lineno
+---
+
+{{APIRef("HTML DOM")}}{{AvailableInWorkers}}
+
+The **`lineno`** read-only property of the {{domxref("ErrorEvent")}} interface returns an integer containing the line number of the script file on which the error occurred.
+
+## Value
+
+An integer.
+
+## Examples
+
+```js
+window.addEventListener("error", (ev) => {
+  console.log("The error occur in line: " + ev.lineno);
+});
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}