[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [IReadonlyVec2](./rc-js-util.ireadonlyvec2.md) ## IReadonlyVec2 interface [Vec2](./rc-js-util.vec2.md). **Signature:** ```typescript export interface IReadonlyVec2 extends TPickExcept>, "update" | "setX" | "setY" | "bound2d" | "translate2d" | "copyFromBuffer" | TTypedArrayTupleMutativeMethods> ``` **Extends:** [TPickExcept](./rc-js-util.tpickexcept.md)<Readonly<[Vec2](./rc-js-util.vec2.md)<TArray>>, "update" \| "setX" \| "setY" \| "bound2d" \| "translate2d" \| "copyFromBuffer" \| [TTypedArrayTupleMutativeMethods](./rc-js-util.ttypedarraytuplemutativemethods.md)>