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Detecting an undefined object property

...ined`"); } To check if an object does not actually have such a property, and will therefore return undefined by default when you try and access it: if(!o.hasOwnProperty('myProperty')) { alert("myProperty does not exist"); } To check if the value associated with an identifier is the special va...
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How do you access a website running on localhost from iPhone browser

I am working on a mobile website and would like to test it using my iPhone browser. My Windows 7 machine and iPhone are on the same wireless network. How do I access localhost from the iPhone? Right now I get a 404 error. ...
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How to “crop” a rectangular image into a square with CSS?

... STYLES HERE } EDIT: If the div needs to link somewhere just adjust HTML and Styles like so: HTML: <div class="thumb1"> <a href="#">Link</a> </div> CSS: .thumb1 { background: url(blah.jpg) 50% 50% no-repeat; /* 50% 50% centers image in div */ width: 250px; heig...
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.append(), prepend(), .after() and .before()

I am pretty proficient with coding, but now and then I come across code that seems to do basically the same thing. My main question here is, why would you use .append() rather then .after() or vice verses? ...
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how to hide a vertical scroll bar when not needed

I have a textarea which is contained in a div as I have jquery hint and wanted to use opacity without changing the border. There is a visible vertical scroll bar how I only want this displayed when I am typing in the text field and it goes beyond the container. I have tried overflow: auto; but does ...
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When should Flask.g be used?

...ting DB connections are tasks which setup the environment for the request, and should not be handled inside before_request and after_request) share | improve this answer | f...
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How can I tell who forked my repository on GitHub?

...can see the number of forks, but I'd like to know who forked my repository and what kind of changes they made to it. 3 Answ...
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Putty: Getting Server refused our key Error

...po in my key. Apparently when pasting to file the first letter was cut off and it started with sh-rsa instead of ssh-rsa. nrathathaus - your answer was very helpful, thanks a lot, this answer is credited to you :) I did like you said and set this in sshd_conf: LogLevel DEBUG3 By looking at the l...
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'Incomplete final line' warning when trying to read a .csv file into R

I'm trying to read a .csv file into R and upon using this formula: 15 Answers 15 ...
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Get a list of all git commits, including the 'lost' ones

...ference between a commit deliberately orphaned by commit --amend or rebase and one accidentally orphaned by working with a detached HEAD, say. – Cascabel Jan 24 '11 at 21:22 3 ...