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import type { EconItem } from "./econ_item.ts";
export function fastConcat<T>(a?: Array<T>, b?: Array<T>): Array<T> {  const newArray = (a || []).slice();  const bArr = b || [];  for (let i = 0; i < bArr.length; i++) {    newArray.push(bArr[i]);  }  return newArray;}
/** mutates original array (first arg), runs no checks*/export function fastConcatMU<T>(a: Array<T>, b: Array<T>): void {  for (let i = 0; i < b.length; i++) {    a.push(b[i]);  }}
export function hasNoName(item: EconItem) {  return !item.name;}