Get the Highlighted/Selected text

Is it possibl开发者_如何学Goe to get the highlighted text in a paragraph of a website e.g. by using jQuery?

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Getting the text the user has selected is relatively simple. There's no benefit to be gained by involving jQuery since you need nothing other than the window and document objects.

function getSelectionText() {
    var text = "";
    if (window.getSelection) {
        text = window.getSelection().toString();
    } else if (document.selection && document.selection.type != "Control") {
        text = document.selection.createRange().text;
    }
    return text;
}

If you're interested in an implementation that will also deal with selections in <textarea> and texty <input> elements, you could use the following. Since it's now 2016 I'm omitting the code required for IE <= 8 support but I've posted stuff for that in many places on SO.

function getSelectionText() {
    var text = "";
    var activeEl = document.activeElement;
    var activeElTagName = activeEl ? activeEl.tagName.toLowerCase() : null;
    if (
      (activeElTagName == "textarea") || (activeElTagName == "input" &&
      /^(?:text|search|password|tel|url)$/i.test(activeEl.type)) &&
      (typeof activeEl.selectionStart == "number")
    ) {
        text = activeEl.value.slice(activeEl.selectionStart, activeEl.selectionEnd);
    } else if (window.getSelection) {
        text = window.getSelection().toString();
    }
    return text;
}

document.onmouseup = document.onkeyup = document.onselectionchange = function() {
  document.getElementById("sel").value = getSelectionText();
};

Selection:
<br>
<textarea id="sel" rows="3" cols="50"></textarea>
<p>Please select some text.</p>
<input value="Some text in a text input">
<br>
<input type="search" value="Some text in a search input">
<br>
<input type="tel" value="4872349749823">
<br>
<textarea>Some text in a textarea</textarea>

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Get highlighted text this way:

window.getSelection().toString()

and of course a special treatment for ie:

document.selection.createRange().htmlText

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Use window.getSelection().toString().

You can read more on developer.mozilla.org

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This solution works if you're using chrome (can't verify other browsers) and if the text is located in the same DOM Element:

window.getSelection().anchorNode.textContent.substring(
  window.getSelection().extentOffset, 
  window.getSelection().anchorOffset)

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Yes you can do it with simple JavaScript snippet:

document.addEventListener('mouseup', event => {  
    if(window.getSelection().toString().length){
       let exactText = window.getSelection().toString();        
    }
}

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You can use an event if you want

    document.addEventListener('selectionchange', (e)=>{
        console.log("Archor node - ",window.getSelection().anchorNode);
        console.log("Focus Node - ",window.getSelection().toString());
    });