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Haskell: Where vs. Let
...eptual difference in whether you want to put the main formula upfront with extra variables defined below (where) or whether you want to define everything upfront and put the formula below (let). Each style has a different emphasis and you see both used in math papers, textbooks, etc. Generally, vari...
Algorithm to generate a crossword
...ithout intervention but you'd still get maybe a fifth requiring one or two extra words added. And we're talking about thousands of words in the file. No doubt backtracking could have helped but it was easier just for the client to reject one with (e.g.) 5 unfinished words than worry about trying to ...
Git: can't undo local changes (error: path … is unmerged)
.../bar.txt <br/> $ git checkout -- foo/bar.txt <br/> (Notice the extra "--" in between)
– Jan
Aug 9 '11 at 17:37
...
Bower install using only https?
...he section we added to the git config file
# Of course we have our own extra cleanup to do via sed since the unset command
# leaves the section around
# See http://git.661346.n2.nabble.com/git-config-unset-does-not-remove-section-td7569639.html
git config --global --unset url."https:...
Bare asterisk in function arguments?
...gobble up remaining positional arguments, but that's not the case. Passing extra positional arguments than the function expects, gives an error of this kind: foo() takes exactly 1 positional argument (2 given)
– Ajay M
May 27 '18 at 1:49
...
IN clause and placeholders
...
A string of the form "?, ?, ..., ?" can be a dynamically created string and safely put into the original SQL query (because it is a restricted form that does not contain external data) and then the placeholders can be used as n...
How to override trait function and call it from the overridden function?
...
An alternative approach if interested - with an extra intermediate class to use the normal OOO way. This simplifies the usage with parent::methodname
trait A {
function calc($v) {
return $v+1;
}
}
// an intermediate class that just uses the trait
class I...
innerText vs innerHTML vs label vs text vs textContent vs outerText
...
text and label remove extra spaces. I got these results when querying options in a dropdown:
e.textContent = "A B C D "
e.text = "A B C D"
e.label = "A B C D"
s...
Detect if an element is visible with jQuery [duplicate]
...l Irish at Google, we identified some cases where we could skip a bunch of extra work when custom selectors like :visible are used many times in the same document. That particular case is up to 17 times faster now!
Keep in mind that even with this improvement, selectors like :visible and :hidden can...
What exactly is Heroku?
... more cost effective to pay someone to build your own solution or take the extra expense.
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