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Merge / convert multiple PDF files into one PDF

... Considering that pdfunite is part of poppler it has a higher chance to be installed, usage is also simpler than pdftk: pdfunite in-1.pdf in-2.pdf in-n.pdf out.pdf share ...
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can you host a private repository for your organization to use with npm?

... a great platform to use within an organization, curious if a private repo is possible, like with Nexus/Maven. Nothing comes up on Google :( ...
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vim, switching between files rapidly using vanilla Vim (no plugins)

...r of the editor, but as I switch between different machines frequently, it is often too much trouble to move my environment around everywhere. I want to just stay in vanilla Vim. ...
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Omit rows containing specific column of NA

... up: DF[complete.cases(DF), ] # x y z # 2 2 10 33 Or if completeFun is already ingrained in your workflow ;) completeFun(DF, names(DF)) share | improve this answer | ...
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Can I install Python windows packages into virtualenvs?

Virtualenv is great: it lets me keep a number of distinct Python installations so that different projects' dependencies aren't all thrown together into a common pile. ...
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How can I filter a date of a DateTimeField in Django?

... datetime.datetime.combine(date, datetime.time.max))} Because it is quite verbose there are plans to improve the syntax using __date operator. Check "#9596 Comparing a DateTimeField to a date is too hard" for more details. ...
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What is a method group in C#?

... A method group is the name for a set of methods (that might be just one) - i.e. in theory the ToString method may have multiple overloads (plus any extension methods): ToString(), ToString(string format), etc - hence ToString by itself is a...
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Remove all but numbers from NSString

I have an NSString (phone number) with some parenthesis and hyphens as some phone numbers are formatted. How would I remove all characters except numbers from the string? ...
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Add a custom attribute to a Laravel / Eloquent model on load?

...le to add a custom attribute/property to an Laravel/Eloquent model when it is loaded, similar to how that might be achieved with RedBean's $model->open() method. ...
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html onchange event not working

I am trying to do some experiment. What I want to happen is that everytime the user types in something in the textbox, it will be displayed in a dialog box. I used the onchange event property to make it happen but it doesn't work. I still need to press the submit button to make it work. I read abo...