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How to define optional methods in Swift protocol?

...l. It's always either concrete implementation or default one. This is how "interfaces" or "contracts" behave in other languages. Disadvantages For non-Void requirements, you need to have a reasonable default value, which is not always possible. However, when you encounter this problem, it means ...
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How to add line breaks to an HTML textarea?

...the text into the textarea and then add some JavaScript behind a button to convert the invisible characters to something readable and dump the result to a DIV. That will tell you what your browser wants. share | ...
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Custom fonts and XML layouts (Android)

...ttrs); } public TextViewPlus(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setCustomFont(context, attrs); } private void setCustomFont(Context ctx, AttributeSet attrs) { TypedArray a = ctx.obtainStyledAttributes(attrs,...
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How to reload page every 5 seconds?

I am converting one layout to html; once I make the changes in code/html/css, every time I have to hit F5. Is there any simple javascript/jQuery solution for this? I.e. after I add the script, reload the whole page every 5 seconds (or some other specific time). ...
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Cannot use object of type stdClass as array?

... the second parameter of the json_decode(); to true, it will automatically convert the object to an array(); Here are some references: http://php.net/manual/en/function.print-r.php http://php.net/manual/en/function.var-dump.php http://php.net/manual/en/function.var-export.php ...
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?

...ced render more likely the possibility of creating duplicate IDs. Another interest of uuid1(), in that case is that the machine where each GUID was initially produced is implicitly recorded (in the "node" part of UUID). This and the time info, may help if only with debugging. ...
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How to sort the letters in a string alphabetically in Python

...space complexity, the idea is to work with the iterable itself, instaed of converting it to a data structure. Nice. Thank You. – Mono Sep 4 '18 at 12:15 add a comment ...
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Removing nan values from an array

... TypeError: only integer scalar arrays can be converted to a scalar index – towry Jun 30 '18 at 14:29 1 ...
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How to implement a tree data-structure in Java? [closed]

...dy have the table records relationship but just unsure i can populate them into a tree using your library. – d4v1dv00 Apr 7 '15 at 15:03 ...
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Why is it important to override GetHashCode when Equals method is overridden?

...sed (in the absence of a custom IEqualityComparer<T>) to group items into buckets. If the hash-code for two items does not match, they may never be considered equal (Equals will simply never be called). The GetHashCode() method should reflect the Equals logic; the rules are: if two things a...