Hàm tính thời gian đã qua

const calculateElapsedTime = (timeCreated) => {
  const created = new Date(timeCreated).getTime();
  let periods = {
    year: 365 * 30 * 24 * 60 * 60 * 1000,
    month: 30 * 24 * 60 * 60 * 1000,
    week: 7 * 24 * 60 * 60 * 1000,
    day: 24 * 60 * 60 * 1000,
    hour: 60 * 60 * 1000,
    minute: 60 * 1000,
  };
  let diff = Date.now() - created;

  for (const key in periods) {
    if (diff >= periods[key]) {
      let result = Math.floor(diff / periods[key]);
      return `${result} ${(result === 1 ? key : key + "s")} ago`;
    }
  }

  return "Just now";
};

calculateElapsedTime("2022-05-20T09:03:20.229Z")
// output: 2 minutes ago

Sao chép ảnh

const copyImageToClipboard = async (imageElement) => {
  let canvas = document.createElement("canvas");
  canvas.width = imageElement.width;
  canvas.height = imageElement.height;
  let ctx = canvas.getContext("2d");
  ctx.drawImage(imageElement, 0, 0);

  const dataURL = canvas.toDataURL();
  const blob = await (await fetch(dataURL)).blob();
  navigator.clipboard.write([
    new ClipboardItem({
      "image/png": blob,
    }),
  ]);
};

Sao chép văn bản

const copyToClipboard = (text) => {
  try {
    if (navigator.clipboard && window.isSecureContext) {
      return navigator.clipboard.writeText(text);
    } else {
      let textArea = document.createElement("textarea");
      textArea.value = text;
      textArea.style.position = "fixed";
      textArea.style.left = "-999999px";
      textArea.style.top = "-999999px";
      document.body.appendChild(textArea);
      textArea.focus();
      textArea.select();
      return new Promise((res, rej) => {
        document.execCommand("copy") ? res() : rej();
        textArea.remove();
      });
    }
  } catch (error) {
    console.error(error);
  }
};

Force download file

const forceDownloadFile = (url) => {
  const anchor = document.createElement("a");
  anchor.href = url;
  anchor.download = url;
  anchor.style.display = "none";
  document.body.appendChild(anchor);
  anchor.click();
  document.body.removeChild(anchor);
};

 

 

 

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