Add update func

src/utils/lists/__snapshots__/lists.test.ts.snap

@@ -56,6 +56,27 @@ Array [
 ]
 `;
 
+exports[`Properly calculates output arrays Updates 1`] = `
+Array [
+  Object {
+    "name": "lorem",
+    "value": 0,
+  },
+  Object {
+    "name": "ipsum",
+    "value": 1,
+  },
+  Object {
+    "name": "dolor",
+    "value": 2,
+  },
+  Object {
+    "name": "amet",
+    "value": 32,
+  },
+]
+`;
+
 exports[`Properly calculates output arrays Updates at index 1`] = `
 Array [
   "lorem",

src/utils/lists/lists.test.ts

@@ -6,10 +6,12 @@ import {
   remove,
   removeAtIndex,
   toggle,
+  update,
   updateAtIndex
 } from "./lists";
 
 const initialArray = ["lorem", "ipsum", "dolor"];
+const compare = (a, b) => a === b;
 
 describe("Properly calculates output arrays", () => {
   it("Adds", () => {
@@ -20,12 +22,28 @@ describe("Properly calculates output arrays", () => {
     expect(addAtIndex("sit", initialArray, 2)).toMatchSnapshot();
   });
 
+  it("Updates", () => {
+    expect(
+      update(
+        {
+          name: "amet",
+          value: 32
+        },
+        initialArray.map((el, index) => ({
+          name: el,
+          value: index
+        })),
+        (a, b) => a.name === b.name
+      )
+    ).toMatchSnapshot();
+  });
+
   it("Updates at index", () => {
     expect(updateAtIndex("amet", initialArray, 1)).toMatchSnapshot();
   });
 
   it("Removes", () => {
-    expect(remove("ipsum", initialArray, (a, b) => a === b)).toMatchSnapshot();
+    expect(remove("ipsum", initialArray, compare)).toMatchSnapshot();
   });
 
   it("Removes at index", () => {
@@ -33,16 +51,16 @@ describe("Properly calculates output arrays", () => {
   });
 
   it("Matches", () => {
-    expect(isSelected("lorem", initialArray, (a, b) => a === b)).toBe(true);
+    expect(isSelected("lorem", initialArray, compare)).toBe(true);
-    expect(isSelected("sit", initialArray, (a, b) => a === b)).toBe(false);
+    expect(isSelected("sit", initialArray, compare)).toBe(false);
   });
 
   it("Toggles", () => {
-    expect(toggle("lorem", initialArray, (a, b) => a === b)).toMatchSnapshot();
+    expect(toggle("lorem", initialArray, compare)).toMatchSnapshot();
-    expect(toggle("sit", initialArray, (a, b) => a === b)).toMatchSnapshot();
+    expect(toggle("sit", initialArray, compare)).toMatchSnapshot();
   });
 
   it("Moves", () => {
-    expect(move("lorem", initialArray, (a, b) => a === b, 1)).toMatchSnapshot();
+    expect(move("lorem", initialArray, compare, 1)).toMatchSnapshot();
   });
 });

src/utils/lists/lists.ts

@@ -30,6 +30,14 @@ export function move<TData>(
   return addAtIndex(data, remove(data, list, compare), index);
 }
 
+export function update<TData>(
+  data: TData,
+  list: List<TData>,
+  compare: Compare<TData>
+) {
+  return add(data, remove(data, list, compare));
+}
+
 export function updateAtIndex<TData>(
   data: TData,
   list: List<TData>,