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How to convert a DOM node list to an array in Javascript?
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Using spread (ES2015), it's as easy as: [...document.querySelectorAll('p')]
(optional: use Babel to transpile the above ES6 code to ES5 syntax)
Try it in your browser's console and see the magic:
for( links of [...document.links] )
console.log(links);
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How to join (merge) data frames (inner, outer, left, right)
...nner join: merge(df1, df2) will work for these examples because R automatically joins the frames by common variable names, but you would most likely want to specify merge(df1, df2, by = "CustomerId") to make sure that you were matching on only the fields you desired. You can also use the by.x and b...
Add file extension to files with bash
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second one adds an extension on all files, not just extensionless ones
– Jeff
Mar 24 '15 at 15:55
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How to fix: “HAX is not working and emulator runs in emulation mode”
...r has to be lower or equal to the memory usage you have set during the installation of HAXM. You can launch its installation again to modify it.
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What is JavaScript's highest integer value that a number can go to without losing precision?
...egers exactly and to correctly compare them.
From the spec:
Note that all the positive and negative integers whose magnitude is no
greater than 253 are representable in the Number type (indeed, the
integer 0 has two representations, +0 and -0).
To safely use integers larger than this, you...
Fluid or fixed grid system, in responsive design, based on Twitter Bootstrap
...idth and fluid width you need to think in terms of your ENTIRE page. Generally, you want to pick one or the other, but not both. The examples you listed in your question are, in-fact, in the same fixed-width page. In other words, the Scaffolding page is using a fixed-width layout. The fixed grid ...
Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?
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This actually refers to the Delta between layout position from iOS6 to iOS7.
In iOS7, some views can hide the status bar or have it transparent and, in effect, it is overlaid on top of your view. So if you put a UI element at (0.0...
“Diff” an image using ImageMagick
... as a PNG file, the second one as a PDF.
The resulting diff file displays all pixels which are different in red color. The ones which are unchanged appear white.
Short and sweet.
Note, your images need not be the same type. You can even mix JPEG, TIFF, PNG -- under one condition: the images sho...
T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition
I am wondering if this is possible at all. I want to update column x if a condition is true, otherwise column y would be updated
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How to Convert Boolean to String
...at the type of the return value is; it may be boolean or something else. (Calling a function someone else wrote during debugging.) Your solution converts $res to boolean, whereas var_export can handle all possible types.
– user2443147
Jun 15 '14 at 18:47
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