context

• Type: string
• Optional

Defined in: options/input-options.ts:740

The value of this at the top level of each module. Normally, you don't need to set this option.

Default

undefined

Example

Set custom context

export default {
  context: 'globalThis',
  output: {
    format: 'iife',
  },
};

In-depth

The context option controls what this refers to in the top-level scope of the input modules.

In ES modules, the this value is undefined by specification. This option allows you to set a different value. For example, if your input modules expect this to be window like in non-ES module scripts, you can set context to 'window'.

Note that if the input module is detected as CommonJS, Rolldown will use exports as the this value regardless of this option.