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How to format numbers? [duplicate]

... max="5" step="1" value="2" title="number of decimal places?" /> Now the other version, without rounding. This takes a different route and attempts to avoid mathematical calculation (as this can introduce rounding, or rounding errors). If you don't want rounding, then you are only dealing...
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What does @synchronized() do as a singleton method in objective C?

I just created a singleton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning. ...
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Best ways to teach a beginner to program? [closed]

...cts: Hello World! Take the year of my birth, and calculate my age (just (now - then) no month corrections). (simple math, input, output) Ask for a direction(Up, down, left, right), then tell the user their fate (fall in a hole, find a cake, ect). (Boolean logic) FizzBuzz, but count once every seco...
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How to build for armv6 and armv7 architectures with iOS 5

...u have to support older stuff for a while. And I guess the Xcode dev team knows this too, which is why you can add armv6 support back in quite simply. share | improve this answer | ...
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Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))

...why we can call this method by its class name (like Arrays.asList(T...a) ) Now here is the twist, please note that this method doesn't create new ArrayList object, it just returns a List reference to existing Array object(so now after using asList method, two references to existing Array object gets...
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

...e']) ? $_POST['value'] : ''; This has become much cleaner as of PHP 7.0, now you can use the null coalesce operator: // Null coalesce operator - No need to explicitly initialize the variable. $value = $_POST['value'] ?? ''; Set a custom error handler for E_NOTICE and redirect the messages away f...
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Multi-gradient shapes

...reen from 55% to the end. This may not look exactly like your shape (Right now, I have no way of testing these colors), but you can modify this to replicate your example. Edit: Also, the 0, 0, 0, theButton.getHeight() refers to the x0, y0, x1, y1 coordinates of the gradient. So basically, it start...
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Android: Want to set custom fonts for whole application not runtime

...text, attrs, defStyle); parseAttributes(context, attrs); } } Now, if you don't have one, add an XML document under res/values/attrs.xml, and add: <resources> <!-- Define the values for the attribute --> <attr name="typeface" format="enum"> <enum na...
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?

... This needs to be updated for VS2017 now. As it turns out, this is its own extension that can be disabled now – Joe Phillips Mar 7 '17 at 16:53 ...
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Detect encoding and make everything UTF-8

...sses all this issues. It´s called Encoding::toUTF8(). You don't need to know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF-8. I did it because a service was giving...