feat-value-has (#160)

* feat: add `valueHas` check if a value has a value

* chore: remove unused import

* doc(model): regenerate

packages/model/docs/classes/Model.md

@@ -55,6 +55,7 @@ Create a simple object model
 - [toJSON](Model.md#tojson)
 - [toString](Model.md#tostring)
 - [validate](Model.md#validate)
+- [valueHas](Model.md#valuehas)
 
 ## Constructors
 
@@ -647,3 +648,22 @@ If the model is invalid and strict mode is enabled
 #### Returns
 
 `Promise`<``true`` \| [`ModelErrors`](../README.md#modelerrors)\>
+
+___
+
+### valueHas
+
+▸ **valueHas**(`key`, `value`): `boolean`
+
+Tests if value exists in paths value (i.e. in an array or object)
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `key` | [`ModelKey`](../README.md#modelkey) |
+| `value` | `any` |
+
+#### Returns
+
+`boolean`

packages/model/src/index.ts

@@ -15,7 +15,7 @@ import {
 	uuid,
 	VariableType
 } from '@snickbit/utilities'
-import objectPath, {ensureExists, ObjectPathBound} from 'object-path'
+import objectPath, {ObjectPathBound} from 'object-path'
 
 export type ModelId = number | string | undefined
 
@@ -397,6 +397,19 @@ export class Model<T extends object = any, D = Partial<T>> {
 		return this.data.has(this.checkKey(key))
 	}
 
+	/**
+	 * Tests if value exists in paths value (i.e. in an array or object)
+	 */
+	valueHas(key: ModelKey, value: ModelValue): boolean {
+		const data = this.get(key)
+		if (isObject(data)) {
+			return Object.values(data).includes(value)
+		} else if (isArray(data)) {
+			return data.includes(value)
+		}
+		return false
+	}
+
 	/**
 	 * Get the keys of the data
 	 */