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Add disabled attribute to input element using Javascript

I have an input box and I want it to be disabled and at the same time hide it to avoid problems when porting my form. 7 Ans...
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How to put a line comment for a multi-line command [duplicate]

I know how to write a multi-line command in a Bash script, but how can I add a comment for each line in a multiline command? ...
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How do I convert NSMutableArray to NSArray?

...ons. For example sending copy to a immutable array only retains the object and returns self. If you don't use garbage collection or ARC remember that -copy retains the object. share | improve this ...
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How can I replace a newline (\n) using sed?

...w can I replace a newline (" \n ") with a space (" ") using the sed command? 42 Answers ...
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Generating an MD5 checksum of a file

Is there any simple way of generating (and checking) MD5 checksums of a list of files in Python? (I have a small program I'm working on, and I'd like to confirm the checksums of the files). ...
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How to initialize an array's length in JavaScript?

...he tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax. ...
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Encrypt & Decrypt using PyCrypto AES 256

...build two functions using PyCrypto that accept two parameters: the message and the key, and then encrypt/decrypt the message. ...
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Why aren't my breakpoints working?

... in the graphical tree display of your project, right click on your Target and do "Get Info." Look for a property named "Generate Debug Symbols" (or similar) and make sure this is CHECKED (aka ON). Also, you might try finding (also in Target >> Get Info) a property called "Debug Information ...
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When to use a “has_many :through” relation in Rails?

I am trying to understand what has_many :through is and when to use it (and how). However, I am not getting it. I am reading Beginning Rails 3 and I tried Googling, but I am not able to understand. ...
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]

...cript only? Please do not give me an answer with jQuery as I can't use it, and I don't know anything about it. 13 Answers ...