Function waitForSelector

waitForSelector(
    ctx: Context,
    selector: string,
    options?: WaitForSelectorOptions,
): Promise<ElementHandle<Element> | null>
Waits for a selector to become visible.
Parameters
- ctx: Context
  Context object.
- selector: string
  the selector to wait for.
- Optionaloptions: WaitForSelectorOptions
  Wait for selector options.
Returns Promise<ElementHandle<Element> | null>
Example
```
await waitForSelector(ctx, '#save-button');
await waitForSelector(ctx, '//button[@id="save-button"]'); // Supports XPath
```
- Defined in src/wait/waiters/waitForSelector.ts:47