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How do I convert a String object into a Hash object?
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The string created by calling Hash#inspect can be turned back into a hash by calling eval on it. However, this requires the same to be true of all of the objects in the hash.
If I start with the hash {:a => Object.new}, then its string represe...
How to design a multi-user ajax web application to be concurrently safe
...er-Side:
Determine a reasonable level at which you would define what I'd call "atomic artifacts" (the page? Objects on the page? Values inside objects?). This will depend on your webservers, database & caching hardware, # of user, # of objects, etc. Not an easy decision to make.
For each atomi...
Creating a segue programmatically
... name of the class: UIStoryboardSegue. You don't create segues programmatically - it is the storyboard runtime that creates them for you. You can normally call performSegueWithIdentifier: in your view controller's code, but this relies on having a segue already set up in the storyboard to referenc...
How to change the href for a hyperlink using jQuery
...le)
var anchors = document.querySelectorAll('a');
Array.prototype.forEach.call(anchors, function (element, index) {
element.href = "http://stackoverflow.com";
});
If you want to change the href value of all <a> elements that actually have an href attribute, select them by adding the [hre...
How do you do a limit query in JPQL or HQL?
... but with setMaxResults, first query is run and then on the resultset you call setMaxResults which would take limited number of result rows from resultset and display it to the user, in my case i have 3 million records which are queried and then am calling setMaxResults to set 50 records but i do n...
How do I get the resource id of an image if I know its name?
...und it more handy and easy to use. Hope it helps you as well.
Link: Dynamically Retrieving Resources in Android
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horizontal scrollbar on top and bottom of table
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@StanleyH : how to set the div to automatically take the width of the table inside it ? i don't want to specify the width of div2 manually, but want it to automatically take the width of table which it contains.
– sqlchild
May 1...
When a 'blur' event occurs, how can I find out which element focus went *to*?
...atedTarget)
event.relatedTarget.className = 'focused';
}
[].forEach.call(document.querySelectorAll('input'), function(el) {
el.addEventListener('blur', blurListener, false);
});
.blurred { background: orange }
.focused { background: lime }
<p>Blurred elements will become orange.&...
ImageView - have height match width?
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This can be done using LayoutParams to dynamically set the Views height once your know the Views width at runtime. You need to use a Runnable thread in order to get the Views width at runtime or else you'll be trying to set the Height before you know the View's width be...
Why is setTimeout(fn, 0) sometimes useful?
... a rather nasty bug, wherein the code was loading a <select> dynamically via JavaScript. This dynamically loaded <select> had a pre-selected value. In IE6, we already had code to fix the selected <option> , because sometimes the <select> 's selectedIndex value would...