JavaScript 获取每个单词的事件

Question

Usually JavaScript binds events on DOM elements. But I want to know on which word the user clicked. The familiar way for me is just wrap every words like here:

<a href="javascript:onClick()">And</a> <a href="javascript:onClick()">now</a> <a href="javascript:onClick()">the</a>
<a href="javascript:onClick()">kung</a> <a href="javascript:onClick()">pao</a> <a href="javascript:onClick()">chicken</a>.

I think it's a redundant code, and is it possible to make code more concise?

Answer 1

Well, you could always write a JavaScript function to wrap every word for you:

function wrapWords(element) {
    var html = element.innerHTML;
    var words = html.split(/ /);
    var newHtml = '';

    for (var i = 0; i < words.length; i++) {
        newHtml += '<span>' + words[i] + '</span> ';
    }

    element.innerHTML = newHtml; 
}

Of course, this assumes that the element has not other html in it. You can combine this with Matti's suggestion to make the code much neater.

Answer 2

To do this in any feasible way, you'll probably still have to wrap each word in a separate element like you're doing, but you can at least get rid of all the inline JavaScript.

Add your even listener to the parent element of the words. Any event that the word elements receive will bubble to the parent element, and you can look at the event target property to find out which word was clicked.

Are you using a JS library or are you working without one?

Edit: Since you're not using a library, jQuery is a popular choice (popular enough to be considered a cliché on SO, I guess that says something). Here's how you'd do it with jQuery:

http://jsfiddle.net/eKvdn/ (click the words)

It would be a very good idea to read more about it before using it, though.

Answer 3

You can use JavaScript to find and wrap each word in a anchor or a span, and then add your onclick handler to that. See how to get a word under cursor using JavaScript .