標記/選定/突出顯示的文本大寫或小寫jQuery

有人可以幫助我，如何將contenteditable div中的標記文本轉換爲btn上的大寫或小寫大小寫點擊jQuery？感謝您的迴應。標記/選定/突出顯示的文本大寫或小寫jQuery

<button type="button" id="asd" class="btn btn-info" onclick="replaceSelectedText(window.getSelection().toString().toUpperCase())">toUpper</button>

<script> 
function replaceSelectedText(replacementText) { 
    var sel, range; 
    if (window.getSelection) { 
     sel = window.getSelection(); 
     if (sel.rangeCount) { 
      range = sel.getRangeAt(0); 
      range.deleteContents(); 
      range.insertNode(document.createTextNode(replacementText)); 
     } 
    } else if (document.selection && document.selection.createRange) { 
     range = document.selection.createRange(); 
     range.text = replacementText; 
    } 
} 
</script>

來源

2017-08-04 Honzík Azjol Havelka

標記怎麼樣？在你的文本字段？ – xander

你做了什麼但尚未分享你的代碼 –

[閱讀如何提出一個好問題]（https://stackoverflow.com/help/how-to-ask）。 –

您可以選擇的文本內容編輯DIV爲大寫。檢查此jsfiddle

[0] http://jsfiddle.net/jignesh221290/7kmb2fm2/

對於html標記，您必須管理。

來源

2017-08-04 12:02:04

你可以試試這個：

function replaceSelectedText(_this) { 
 
    
 
    var sel, range; 
 
    var selectedText=window.getSelection().toString(); 
 
    if ($.trim(selectedText)!="") { 
 
     sel = window.getSelection(); 
 
     
 
     if (sel.rangeCount) { 
 
      range = sel.getRangeAt(0); 
 
      range.deleteContents(); 
 
      if($(_this).html().toString().toUpperCase()=="TOUPPER"){ 
 
      range.insertNode(document.createTextNode(selectedText.toString().toUpperCase())); 
 
      $(_this).html("toLower"); 
 
      } 
 
      else{ 
 
      range.insertNode(document.createTextNode(selectedText.toString().toLowerCase())); 
 
      $(_this).html("toUpper"); 
 
      } 
 
     } 
 
    } 
 
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p> 
 

 

 
<button type="button" id="asd" class="btn btn-info" onclick="replaceSelectedText(this)">toUpper</button>

來源

2017-08-04 12:05:04

標記/選定/突出顯示的文本大寫或小寫jQuery

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