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feat(associative): add new functions, update arg & return types
- add commonKeys*() - add mergeMapWith() / mergeObjWith() - add mergeDeepObj() - rename mapKeys*() => mergeApply*() - update renameKeys*() arg/return types - update indexed() arg types - update join() & joinWith() arg/return types - update re-exports
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import { IObjectOf } from "@thi.ng/api/api"; | ||
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| /** | ||
| * Like `commonKeysObj()`, but for ES6 Maps. | ||
| * | ||
| * @param a | ||
| * @param b | ||
| */ | ||
| export function commonKeysMap<K>(a: Map<K, any>, b: Map<K, any>) { | ||
| const res: K[] = []; | ||
| for (let k of a.keys()) { | ||
| if (b.has(k)) { | ||
| res.push(k); | ||
| } | ||
| } | ||
| return res; | ||
| } | ||
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| /** | ||
| * Returns array of keys present in both args, i.e. the set intersection | ||
| * of the given objects' key / property sets. | ||
| * | ||
| * ``` | ||
| * commonKeys({ a: 1, b: 2 }, { c: 10, b: 20, a: 30 }) | ||
| * // [ "a", "b" ] | ||
| * ``` | ||
| * | ||
| * @param a | ||
| * @param b | ||
| */ | ||
| export function commonKeysObj(a: IObjectOf<any>, b: IObjectOf<any>) { | ||
| const res: string[] = []; | ||
| for (let k in a) { | ||
| if (b.hasOwnProperty(k)) { | ||
| res.push(k); | ||
| } | ||
| } | ||
| return res; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,18 @@ | ||
| export * from "./array-set"; | ||
| export * from "./equiv-map"; | ||
| export * from "./ll-set"; | ||
| export * from "./sorted-map"; | ||
| export * from "./sorted-set"; | ||
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| export * from "./common-keys"; | ||
| export * from "./difference"; | ||
| export * from "./intersection"; | ||
| export * from "./union"; | ||
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| export * from "./equiv-map"; | ||
| export * from "./indexed"; | ||
| export * from "./intersection"; | ||
| export * from "./invert"; | ||
| export * from "./join"; | ||
| export * from "./ll-set"; | ||
| export * from "./merge-apply"; | ||
| export * from "./merge-deep"; | ||
| export * from "./merge-with"; | ||
| export * from "./merge"; | ||
| export * from "./rename-keys"; | ||
| export * from "./select-keys"; | ||
| export * from "./sorted-map"; | ||
| export * from "./sorted-set"; | ||
| export * from "./union"; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| import { IObjectOf } from "@thi.ng/api/api"; | ||
| import { isPlainObject } from "@thi.ng/checks/is-plain-object"; | ||
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| import { mergeObjWith } from "./merge-with"; | ||
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| export function mergeDeepObj(dest: IObjectOf<any>, ...xs: IObjectOf<any>[]) { | ||
| return mergeObjWith( | ||
| (a, b) => isPlainObject(a) && isPlainObject(b) ? mergeDeepObj(a, b) : b, | ||
| dest, ...xs); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| import { IObjectOf } from "@thi.ng/api/api"; | ||
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| import { copy } from "./utils"; | ||
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| export function mergeMapWith<K, V>(f: (a: V, b: V) => V, dest: Map<K, V>, ...xs: Map<K, V>[]) { | ||
| const res: Map<K, V> = copy(dest, Map); | ||
| for (let x of xs) { | ||
| for (let [k, v] of x) { | ||
| if (res.has(k)) { | ||
| res.set(k, f(res.get(k), v)); | ||
| } else { | ||
| res.set(k, v); | ||
| } | ||
| } | ||
| } | ||
| return res; | ||
| } | ||
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| export function mergeObjWith<T>(f: (a: T, b: T) => T, dest: IObjectOf<T>, ...xs: IObjectOf<T>[]) { | ||
| const res: IObjectOf<T> = { ...dest }; | ||
| for (let x of xs) { | ||
| for (let k in x) { | ||
| const v = x[k]; | ||
| if (res.hasOwnProperty(k)) { | ||
| res[k] = f(dest[k], v); | ||
| } else { | ||
| res[k] = v; | ||
| } | ||
| } | ||
| } | ||
| return res; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,26 +1,28 @@ | ||
| import { IObjectOf } from "@thi.ng/api/api"; | ||
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| /** | ||
| * Merges all given maps in left-to-right order into `m`. | ||
| * Returns `m`. | ||
| * Merges all given maps in left-to-right order into `dest`. | ||
| * Returns `dest`. | ||
| * | ||
| * @param m | ||
| * @param maps | ||
| * @param dest | ||
| * @param xs | ||
| */ | ||
| export function mergeMap<K, V>(m: Map<K, V>, ...maps: Map<K, V>[]) { | ||
| for (let mm of maps) { | ||
| for (let p of mm) { | ||
| m.set(p[0], p[1]); | ||
| export function mergeMap<K, V>(dest: Map<K, V>, ...xs: Map<K, V>[]) { | ||
| for (let x of xs) { | ||
| for (let pair of x) { | ||
| dest.set(pair[0], pair[1]); | ||
| } | ||
| } | ||
| return m; | ||
| return dest; | ||
| } | ||
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| /** | ||
| * Merges all given objects in left-to-right order into `m`. | ||
| * Returns `m`. | ||
| * Merges all given objects in left-to-right order into `dest`. | ||
| * Returns `dest`. | ||
| * | ||
| * @param m | ||
| * @param maps | ||
| * @param dest | ||
| * @param xs | ||
| */ | ||
| export function mergeObj(m, ...maps: any[]) { | ||
| return Object.assign(m, ...maps); | ||
| export function mergeObj<T>(dest: IObjectOf<T>, ...xs: IObjectOf<T>[]): IObjectOf<T> { | ||
| return Object.assign(dest, ...xs); | ||
| } |
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