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Why doesn't Haskell's Prelude.read return a Maybe?
... good news is that folks were sufficiently convinced to start moving away from fail in the libraries. The bad news is that the proposal got lost in the shuffle. There should be such a function, although one is easy to write (and there are zillions of very similar versions floating around many codeb...
How to un-commit last un-pushed git commit without losing the changes
...will be in your working directory, whereas the LAST commit will be removed from your current branch. See git reset man
In case you did push publicly (on a branch called 'master'):
git checkout -b MyCommit //save your commit in a separate branch just in case (so you don't have to dig it from refl...
How is performance affected by an unused using directive?
...ve unused references explains how it be useful to remove unused references from the application.
Below are the some excerpts from the link:
By removing any unused references in your application, you are
preventing the CLR from loading the unused referenced modules at
runtime. Which means that you...
Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...etween these function calls?
The various directive functions are executed from within two other angular functions called $compile (where the directive's compile is executed) and an internal function called nodeLinkFn (where the directive's controller, preLink and postLink are executed). Various thi...
How to loop through array in jQuery?
...ffers a contained-scope variable (or constant, in the above) for the entry from the array.
Disadvantages: Not supported in any version of IE.
jQuery.each:
jQuery.each(substr, function(index, item) {
// do something with `item` (or `this` is also `item` if you like)
});
(Link to docs)
Advan...
How to grep and replace
...s touches every file so file times are modified; and converts line endings from CRLF to LF on Windows.
– jww
Oct 25 '17 at 0:21
...
Why is typeof null “object”?
...
From the MDN page about the behaviour of the typeof operator:
null
// This stands since the beginning of JavaScript
typeof null === 'object';
In the first implementation of JavaScript, JavaScript values were represented ...
What is middleware exactly?
...y makes 4 different products, your client has another 3 different products from another 3 different companies.
Someday the client thought, why don't we integrate all our systems into one huge system. Ten minutes later their IT department said that will take 2 years.
You (the wise developer) said, ...
How to re-open an issue in github?
...he person who closed it? E.g. is it common for contributors to unsubscribe from notifications as part of closing a bug, or is the default to continue to receive notifications?
– nealmcb
Feb 27 '15 at 16:00
...
Saving images in Python at a very high quality
... elevation_angle is a number (in degrees) specifying the polar angle (down from vertical z axis) and the azimuthal_angle specifies the azimuthal angle (around the z axis).
I find that it is easiest to determine these values by first plotting the image and then rotating it and watching the current v...