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Rails: How to change the text on the submit button in a Rails Form

... If you want to change all create and update form submit tags, this change is easy to make. Modify config/locales/en.yml like so: en: helpers: submit: create: "Crear un %{model}" update: "Confirmar cambios al %{model} creado" ...
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Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?

... Since PHP/5.4.0, there is an option called JSON_UNESCAPED_UNICODE. Check it out: https://php.net/function.json-encode Therefore you should try: json_encode( $text, JSON_UNESCAPED_UNICODE ); ...
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Convert interface{} to int

...) } func addTwoNumbers(val1 interface{}, val2 interface{}) int { op1, _ := val1.(int) op2, _ := val2.(int) return op1 + op2 } share | improve this answer | fol...
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C read file line by line

... Why should I do that? Read the manual, buffer is reallocated at each call, then it should be freed at the end. – mbaitoff Nov 30 '12 at 12:43 30 ...
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How to scale a UIImageView proportionally?

I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width. 17 Answer...
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]

... useful construct when trying to hide variables from the parent namespace. All the code within the function is contained in the private scope of the function, meaning it can't be accessed at all from outside the function, making it truly private. See: http://en.wikipedia.org/wiki/Closure_%28comput...
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PHP: How to remove all non printable characters in a string?

...to remove other chars... If you're dealing with Unicode, there are potentially many non-printing elements, but let's consider a simple one: NO-BREAK SPACE (U+00A0) In a UTF-8 string, this would be encoded as 0xC2A0. You could look for and remove that specific sequence, but with the /u modifier in ...
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How to silence output in a Bash script?

... All output: scriptname &>/dev/null Portable: scriptname >/dev/null 2>&1 Portable: scriptname >/dev/null 2>/dev/null For newer bash (no portable): scriptname &>- ...
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Is there a way to get the source code from an APK file?

The hard drive on my laptop just crashed and I lost all the source code for an app that I have been working on for the past two months. All I have is the APK file that is stored in my email from when I sent it to a friend. ...
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How do I install from a local cache with pip?

I install a lot of the same packages in different virtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache? ...