<html>
<head>
<script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<meta charset=utf-8 />
<title>Test Page</title>
<style>
body {
font-family: sans-serif;
}
#target {
border: 1px solid black;
}
</style>
</head>
<body>
<button onClick="javascript:snapSelectionToWord();">Snap</button>
<div contenteditable="true" onmouseup="snapSelectionToWord()">
This is a demo text for a student.
</div>
</body>
</html>
function snapSelectionToWord() {
var sel;
// Check for existence of window.getSelection() and that it has a
// modify() method. IE 9 has both selection APIs but no modify() method.
if (window.getSelection && (sel = window.getSelection()).modify) {
//debugger;
sel = window.getSelection();
if (!sel.isCollapsed) {
// Detect if selection is backwards
var range = document.createRange();
range.setStart(sel.anchorNode, sel.anchorOffset);
range.setEnd(sel.focusNode, sel.focusOffset);
var backwards = range.collapsed;
range.detach();
// modify() works on the focus of the selection
var endNode = sel.focusNode, endOffset = sel.focusOffset;
sel.collapse(sel.anchorNode, sel.anchorOffset);
if (backwards) {
sel.modify("move", "backward", "character");
sel.modify("move", "forward", "word");
sel.extend(endNode, endOffset);
console.log("BackWords"+sel.anchorOffset+"and "+sel.focusOffset);
var startObj = sel.anchorOffset;
var endObj = sel.focusOffset;
alert(startObj+"_"+endObj);
sel.modify("extend", "forward", "character");
sel.modify("extend", "backward", "word");
} else {
sel.modify("move", "forward", "character");
sel.modify("move", "backward", "word");
sel.extend(endNode, endOffset);
sel.modify("extend", "backward", "character");
sel.modify("extend", "forward", "word");
console.log("Forwards"+sel.anchorOffset+"and "+sel.focusOffset);
}
}
} else if ( (sel = document.selection) && sel.type != "Control") {
var textRange = sel.createRange();
if (textRange.text) {
textRange.expand("word");
// Move the end back to not include the word's trailing space(s),
// if necessary
while (/\s$/.test(textRange.text)) {
textRange.moveEnd("character", -1);
}
textRange.select();
}
}
}
Output
You can jump to the latest bin by adding /latest
to your URL
Keyboard Shortcuts
Shortcut | Action |
---|---|
ctrl + [num] | Toggle nth panel |
ctrl + 0 | Close focused panel |
ctrl + enter | Re-render output. If console visible: run JS in console |
Ctrl + l | Clear the console |
ctrl + / | Toggle comment on selected lines |
ctrl + ] | Indents selected lines |
ctrl + [ | Unindents selected lines |
tab | Code complete & Emmet expand |
ctrl + shift + L | Beautify code in active panel |
ctrl + s | Save & lock current Bin from further changes |
ctrl + shift + s | Open the share options |
ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts |
JS Bin URLs
URL | Action |
---|---|
/ | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
/edit | Edit the current bin |
/watch | Follow a Code Casting session |
/embed | Create an embeddable version of the bin |
/latest | Load the very latest bin (/latest goes in place of the revision) |
/[username]/last | View the last edited bin for this user |
/[username]/last/edit | Edit the last edited bin for this user |
/[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
/quiet | Remove analytics and edit button from rendered output |
.js | Load only the JavaScript for a bin |
.css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. |