[javascript] clipboard (ios 예외처리)

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// 버튼 클릭 했을 때 function onClick_clipboard(){     /* Get the text field */     var copyText = document.getElementById("clipboard");       var isIOS = (UserAgent.match(/i(Phone|Pod)/i) != null ) true : false;     if(isIOS){         // ios 일때         iosCopyToClipboard(copyText);     }else{         // ios가 아닐때         copyToClipboard(copyText);     }         /* Alert the copied text */     alert("copy 되었습니다.");     return false; }   // ios가 아닐 때 function copyToClipboard(copyText){     /* Select the text field */     copyText.select();       /* Copy the text inside the text field */     document.execCommand("copy"); }   // ios 일때 function iosCopyToClipboard(el) {     var oldContentEditable = el.contentEditable,         oldReadOnly = el.readOnly,         range = document.createRange();       el.contentEditable = true;     el.readOnly = false;     range.selectNodeContents(el);       var s = window.getSelection();     s.removeAllRanges();     s.addRange(range);       // A big number, to cover anything that could be inside the element.     el.setSelectionRange(0, 999999);       el.contentEditable = oldContentEditable;     el.readOnly = oldReadOnly;       document.execCommand('copy'); }