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    <p>Pass an element to getButtonCoords. It will return an object (let's call it <code>coords</code>). <code>coords.x</code> is the x coordinate and <code>coords.y</code> is the y coordinate.</p> <pre><code>/* from stackoverflow.com/questions/442404/dynamically-retrieve-html-element-x-y-position-with-javascript */ function getOffset( el ) { var _x = 0; var _y = 0; while( el &amp;&amp; !isNaN( el.offsetLeft ) &amp;&amp; !isNaN( el.offsetTop ) ) { _x += el.offsetLeft - el.scrollLeft; _y += el.offsetTop - el.scrollTop; el = el.offsetParent; } return { top: _y, left: _x }; } function getButtonCoords(button) { /* wrap the text in a span element so we can get its coordinates */ button.innerHTML = "&lt;span id='button-text-" + button.id + "'&gt;" + button.innerHTML + "&lt;/span&gt;"; /* get the span element */ var button_span = document.getElementById('button-text-' + button.id); /* get the offset */ var offset = getOffset(button_span); /* get the coordinates */ var coords = { x: offset.left + button_span.offsetWidth, y: offset.top }; /* return them */ return coords; } /* get the button and pass it to the coordinate function */ var coords = getButtonCoords(document.getElementById('button-id')); /* show the results */ alert(coords.x + ", " + coords.y); </code></pre>
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    1. POJS - how to get button text "end" position
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    1. CO@Derek: it doesn't look that similar to me. Yours uses a querySelector and appendChild, whereas mine prefers just using innerHTML. Mine returns an object, and uses a combination of the button's id and a suffix to generate an id, where you use query selectors. Mine is wrapped in a function, yours is not (trivial difference). Honestly, I don't see much alike, with the sole exception that we both use a `span` and `offset*` to detect the coordinates. `offset` isn't really a unique solution, and `span` is just a standard HTML tag which happens to do almost nothing except put the text in an element.
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    2. CONo no no, I don't mean all those fancy stuff you add in. I mean the *way of getting the coordinates*. I add in a `<span>` to determine the `x` and `y`, and you also add in a `<span>`. Mine uses `querySelector` to get the element, and you also use similar method to get the element.
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      1. USDerek 朕會功夫
    3. COI will concede the `<span>` point: our codes do look similar in that respect, but I still did not "steal" it from you. `<span>` is not a unique concept or idea, it has been known for quite some time that `<span>` provides an easy way to reference certain parts of text (cf: http://www.w3schools.com/tags/tag_span.asp "manipulate with ... JavaScript" "add a hook to a part of a text" "no visual change"). As for `querySelector`, I do not believe that constitutes as similar. The method of creating a new id for the `span` element doesn't seem similar to querySelector or the syntax for querySelector.
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