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* perf: update deepCopy * fix: using deepCopy in core and cli packages * fix: using deepCopy in editor * chore: formatting * fix: some micro optimisation in deepCopy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| import { deepCopy } from './utils'; | ||
|
|
||
| describe('deepCopy', () => { | ||
| it('should deep copy an object', () => { | ||
| const object = { | ||
| deep: { | ||
| props: { | ||
| list: [{ a: 1 }, { b: 2 }, { c: 3 }], | ||
| }, | ||
| arr: [1, 2, 3], | ||
| }, | ||
| arr: [ | ||
| { | ||
| prop: { | ||
| list: ['a', 'b', 'c'], | ||
| }, | ||
| }, | ||
| ], | ||
| func: () => {}, | ||
| date: new Date(), | ||
| undef: undefined, | ||
| nil: null, | ||
| bool: true, | ||
| num: 1, | ||
| }; | ||
| const copy = deepCopy(object); | ||
| expect(copy).toEqual(object); | ||
| expect(copy).not.toBe(object); | ||
| expect(copy.arr).toEqual(object.arr); | ||
| expect(copy.arr).not.toBe(object.arr); | ||
| expect(copy.deep.props).toEqual(object.deep.props); | ||
| expect(copy.deep.props).not.toBe(object.deep.props); | ||
| }); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,32 @@ | ||
| export const deepCopy = <T>(toCopy: T) => JSON.parse(JSON.stringify(toCopy)) as T; | ||
| /* eslint-disable @typescript-eslint/no-explicit-any, @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-unsafe-member-access, @typescript-eslint/no-unsafe-return, @typescript-eslint/no-unsafe-argument */ | ||
| export const deepCopy = <T>(source: T): T => { | ||
| let clone: any; | ||
| let i: any; | ||
| const hasOwnProp = Object.prototype.hasOwnProperty.bind(source); | ||
| // Primitives & Null | ||
| if (typeof source !== 'object' || source === null) { | ||
| return source; | ||
| } | ||
| // Date | ||
| if (source instanceof Date) { | ||
| return new Date(source.getTime()) as T; | ||
| } | ||
| // Array | ||
| if (Array.isArray(source)) { | ||
| clone = []; | ||
| const len = source.length; | ||
| for (i = 0; i < len; i++) { | ||
| clone[i] = deepCopy(source[i]); | ||
| } | ||
| return clone; | ||
| } | ||
| // Object | ||
| clone = {}; | ||
| for (i in source) { | ||
| if (hasOwnProp(i)) { | ||
| clone[i] = deepCopy((source as any)[i]); | ||
| } | ||
| } | ||
| return clone; | ||
| }; | ||
| // eslint-enable |