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removed nullish coalescing #40

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Oct 24, 2022
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2 changes: 1 addition & 1 deletion src/operations/difference.function.ts
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ export function difference<T>(...sets: ReadonlySet<T>[]): ReadonlySet<T>;
* @description A ∖ B ≔ { x : (x ∈ A) ∧ (x ∉ B) }
*/
export function difference<T, S extends ReadonlySet<T>>(...sets: S[]): S {
const result = new Set<T>(sets[0] ?? new Set<T>());
const result = new Set<T>(sets[0]);

for (let index = 1; index < sets.length; index++) {
for (const value of sets[index]!) {
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2 changes: 1 addition & 1 deletion src/operations/intersection.function.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ export function intersection<T>(...sets: ReadonlySet<T>[]): ReadonlySet<T>;
* @description A ∩ B ≔ { x : (x ∈ A) ∧ (x ∈ B) }
*/
export function intersection<T, S extends ReadonlySet<T>>(...sets: S[]): S {
const result = new Set<T>(sets[0] ?? new Set<T>());
const result = new Set<T>(sets[0]);

for (let index = 1; index < sets.length; index++) {
for (const value of result) {
Expand Down
2 changes: 1 addition & 1 deletion src/operations/union.function.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ export function union<T>(...sets: ReadonlySet<T>[]): ReadonlySet<T>;
* @description A ∪ B ≔ { x : (x ∈ A) ∨ (x ∈ B) }
*/
export function union<T, S extends ReadonlySet<T>>(...sets: S[]): S {
const result = new Set<T>(sets[0] ?? new Set<T>());
const result = new Set<T>(sets[0]);

for (let index = 1; index < sets.length; index++) {
for (const value of sets[index]!) {
Expand Down
2 changes: 1 addition & 1 deletion src/operations/xor.function.ts
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ export function xor<T>(...sets: ReadonlySet<T>[]): ReadonlySet<T>;
* @description A ∆ B ≔ { x : (x ∈ A) ⊕ (x ∈ B) }
*/
export function xor<T, S extends ReadonlySet<T>>(...sets: S[]): S {
const result = new Set<T>(sets[0] ?? new Set<T>());
const result = new Set<T>(sets[0]);
const reusedValues = new Set<T>();

for (let index = 1; index < sets.length; index++) {
Expand Down