The predefined function execCommand() applies to the text that is selected. You can perform actions like bold, delete, redo, undo, etc. on the selected text in the editable area. You need to use the document prefix before execCommand like this document.execCommand();.
exec Commands List
- bold
- copy
- paste
- cut
- redo
- undo
- delete
- superscript
- subscript
- unlink
- selectAll
- backColor
- createLink
- defaultParagraphSeparator
- fontName
- fontSize
- fontColor
- formatBlock
- forwardDelete
- insertHorizontalRule
- insertHTML
- insertImage
- insertLineBreak
- insertOrderedList
- insertParagraph
- insertText
- insertUnorderedList
- justifyCenter
- justifyFull
- justifyLeft
- justifyRight
- outdent
- strikethrough
- styleWithCss
- useCSS
bold exec Command Example:
<!DOCTYPE html>
<html>
<head>
<title>Javascript bold execCommand()</title>
</head>
<body>
<center>
<button onclick="makebold()">B</button>
<div style="width:50%;height:50px;" contenteditable="true" autofocus="true">Select and make me bold</div>
</center>
<script>
function makebold()
{
document.execCommand("bold");
}
</script>
</body>
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