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Google Maps V3 - How to calculate the zoom level for a given bounds

...ing zoom level you change to (roughly speaking, do you make it larger or smaller than it currently is?). If you really need to calculate the zoom, rather than store it, this should do the trick: The Mercator projection warps latitude, but any difference in longitude always represents the same frac...
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How to get root access on Android emulator?

I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD). ...
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How to get past the login page with Wget?

...p Make sure the --post-data parameter is properly percent-encoded (especially ampersands!) or the request will probably fail. Also make sure that user and password are the correct keys; you can find out the correct keys by sleuthing the HTML of the login page (look into your browser’s “inspect...
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How to inherit from a class in javascript?

...t the bottom. I now prefer Object.create(). Object.create is available in all modern browsers. I should note that Object.create is usually much slower than using new with a function constructor. //The prototype is just an object when you use `Object.create()` var Base = {}; //This is how you cre...
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PDO mysql: How to know if insert was successful

... How do you look at the execute() value? – Mallow Jun 2 '11 at 21:53 29 No more like thi...
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How to change JFrame icon [duplicate]

...nswers how to use the image if it's a resource. :D – php_coder_3809625 Aug 16 '16 at 13:50 Example for the filepath: T...
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How to set HTTP headers (for cache-control)?

...low. Some information on the Cache-Control header is as follows HTTP 1.1. Allowed values = PUBLIC | PRIVATE | NO-CACHE | NO-STORE. Public - may be cached in public shared caches. Private - may only be cached in private cache. No-Cache - may not be cached. No-Store - may be cached but not archived. ...
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What does Redis do when it runs out of memory?

... time finding the answer. How does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory? ...
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AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?

...nal web application at work. In IE10 the requests work fine, but in Chrome all the AJAX requests (which there are many) are sent using OPTIONS instead of whatever defined method I give it. Technically my requests are "cross domain." The site is served on localhost:6120 and the service I'm making AJA...
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Hashing a string with Sha256

...ich you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.) For ASCII text, Encoding.UTF8 will definitely be suitable. If you're aiming for perfect compatibility with your friend's code, even on non-ASCII inputs, you'd better try a few test cases with non-ASCII ch...