1---
2category: '@Math'
3---
4 
5# useTrunc
6 
7Reactive `Math.trunc`.
8 
9## Usage
10 
11```ts
12import { useTrunc } from '@vueuse/math'
13 
14const value1 = ref(0.95)
15const value2 = ref(-2.34)
16const result1 = useTrunc(value1) // 0
17const result2 = useTrunc(value2) // -2
18```
19 
20## Type Declarations
21 
22```ts
23/**
24 * Reactive `Math.trunc`.
25 *
26 * @see https://vueuse.org/useTrunc
27 *
28 * @__NO_SIDE_EFFECTS__
29 */
30export declare function useTrunc(
31  value: MaybeRefOrGetter<number>,
32): ComputedRef<number>
33```
34