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What is the smallest possible valid PDF?

...oy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec. However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out: %PDF-1.0 1 0 obj<</Type/Catalog/Pages 2 0 R>>endo...
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“Could not find any information for class named ViewController”

...roject. Steps: In the project file explorer (left panel) find the class and right click -> Delete Remove reference (do not move to trash as you will lose the class for good) Right click on the folder that contained the class -> Add files to ... Find the class you just deleted in the file sy...
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How to obtain the start time and end time of a day?

How to obtain the start time and end time of a day? 14 Answers 14 ...
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How to make my custom type to work with “range-based for loops”?

... The standard has been changed since the question (and most answers) were posted in the resolution of this defect report. The way to make a for(:) loop work on your type X is now one of two ways: Create member X::begin() and X::end...
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How to complete a git clone for a big project on an unstable connection?

...codebase, but at the moment I have an internet connection of about 300kbps and it's just anything but stable. I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some way to have a more failure-resistant git c...
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What is the difference D3 datum vs. data?

Can someone please explain the difference between datum() and data() in D3.js? I see both being used and I am not sure why you should choose one over the other? ...
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Global and local variables in R

I am a newbie for R, and I am quite confused with the usage of local and global variables in R. 3 Answers ...
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what is “strict mode” and how is it used?

...en looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful? ...
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Python != operation vs “is not”

... == is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.) is is an identity test. It checks whether the right hand side and the left hand side are the very same object. No methodcalls ...
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bash: mkvirtualenv: command not found

...erage the chance that virtualenvwrapper.sh is already in your shell's PATH and just issue a source `which virtualenvwrapper.sh` share | improve this answer | follow ...