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import { Exception } from "../model/idea/idea";
export class ArrayUtil {
public static Contains(arr1: any[], arr2: any): boolean {
if (arr1.length === 0) {
return false;
}
let isComplex = typeof arr1[0] === "object";
for (const ele of arr1) {
if (isComplex && "Equals" in ele) {
if (ele.Equals(arr2)) {
return true;
}
}
else {
if (ele === arr2) {
return true;
}
}
}
return false;
}
public static RemoveMany(arr: any[], elements: Object[]) {
elements.forEach(e => ArrayUtil.Remove(arr, e));
}
public static AddMany(arr: any[], others: Object[]) {
arr.push(...others);
}
public static Clear(arr: any[]) {
arr.splice(0, arr.length);
}
public static Remove(arr: any[], other: Object) {
const index = ArrayUtil.IndexOfWithEqual(arr, other);
if (index === -1) {
return;
}
arr.splice(index, 1);
}
public static First<T>(arr: T[], predicate: (x: any) => boolean): T {
let filtered = arr.filter(predicate);
if (filtered.length > 0) {
return filtered[0];
}
throw new Exception();
}
public static FirstOrDefault<T>(arr: T[], predicate: (x: any) => boolean): T | undefined {
let filtered = arr.filter(predicate);
if (filtered.length > 0) {
return filtered[0];
}
return undefined;
}
public static Distinct(arr: any[]): any[] {
let ret = [];
for (const ele of arr) {
if (!ArrayUtil.Contains(ret, ele)) {
ret.push(ele);
}
}
return ret;
}
public static IndexOfWithEqual(arr: any[], other: any): number {
for (let i = 0; i < arr.length; i++) {
let isComplex = typeof arr[0] === "object";
if (isComplex && "Equals" in arr[i]) {
if (arr[i].Equals(other)) {
return i;
}
}
else {
if (arr[i] === other) {
return i;
}
}
}
return -1;
}
}
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