clipboard.copy.js

Clipboard = {

  "isSecureContent": function() {
    return (window.isSecureContext && navigator.clipboard);
  },

  "secureCopy": function(text) {
    navigator.clipboard.writeText(text)
  },

  "insecureCopy": function(text) {
    const textArea = document.createElement("textarea");
    textArea.value = text;
    document.body.appendChild(textArea);
    textArea.focus();
    textArea.select();
    try {
      document.execCommand('copy');
    } catch(err) {
      console.error('Unable to copy to clipboard', err);
    }
    document.body.removeChild(textArea)
  },

  "copy": function(content) {
    var text = (function() {
      if (typeof content === 'string') {
        return content;
      } else if (typeof content === 'object') {
        return $(content)[0].innerText;
      } else if (document.getSelection().toString().length > 0) {
        return document.getSelection().toString();
      }
    })();

    if (this.isSecureContent()) {
      this.secureCopy(text);
    } else {
      this.insecureCopy(text);
    }
  }
};