All files / src/functions getLastBuffers.ts

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import {IOrderbook, ITicker} from '../interfaces';
 
const getLastBuffers = <T extends IOrderbook | ITicker>(
  buffer: T[],
  maxNumResult: number,
) => {
  try {
    const result: T[] = [];
 
    for (let i = buffer.length - 1; i >= 0; i--) {
      let isExist = false;
 
      for (let j = 0; j < result.length; j++) {
        if (result[j].code === buffer[i].code) {
          isExist = true;
          break;
        }
      }
 
      if (!isExist) {
        result.push(buffer[i]);
        if (result.length >= maxNumResult) break;
      }
    }
 
    return result;
  } catch (error) {
    console.error(error);
    return [];
  }
};
 
export default getLastBuffers;