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test: cover sliceFragment

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max 2022-07-23 16:21:53 +03:00
parent 19d7f239c1
commit ffea4d15cb
7 changed files with 417 additions and 11 deletions
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11
src/utils/arrayUtils.ts
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@ -1,4 +1,4 @@
import {UINT16_MAX, UINT32_MAX, UINT8_MAX} from "../config/constants";
import {UINT16_MAX, UINT32_MAX, UINT8_MAX} from "config/constants";
export function last<T>(array: T[]) {
return array[array.length - 1];
@ -9,15 +9,18 @@ export function unique<T>(array: T[]) {
}
export function sliceFragment<T>(array: T[], index: number, zone: number) {
if (index < 0) throw new Error("Index must not be negative");
if (zone < 0) throw new Error("Zone must not be negative");
if (zone + 1 + zone >= array.length) {
return array.slice();
}
const start = index - zone;
const end = index + zone;
const end = index + zone + 1;
if (start < 0) {
return array.slice(0, end).concat(array.slice(start));
return array.slice(start).concat(array.slice(0, end));
}
if (end >= array.length) {
@ -27,8 +30,6 @@ export function sliceFragment<T>(array: T[], index: number, zone: number) {
return array.slice(start, end);
}
window.sliceFragment = sliceFragment;
interface ICreateTypesArrayLength {
maxValue: number;
length: number;