javascript get selected html elements [duplicate]

This question already has answers here: How to get selected html text with javascr开发者_运维问答ipt? [duplicate] (5 answers) Closed 9 years ago.

User is on a webpage , uses his mouse to select stuff, how can i use javascript to know what has been selected?

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To get the raw text currently highlighted on the page you can do something like this:

function getSelectedText() {
    return window.getSelection ? window.getSelection() 
                               : document.selection.createRange().text;
}

Check an example of the above code here.

More info:

• DOM Selection
• IE document.selection

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If you're talking about the user dragging his mouse over text so that it's highlighted, use the Selection and Range objects (for Mozilla) and Selection and TextRange objects (for IE).