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What is meant by the term “hook” in programming?
...e interrupt handlers so that your code gets called first on interrupt (and then your code would call the previously present interrupt handling code, in a daisy-chain manner)
– David Tonhofer
Dec 16 '16 at 1:51
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How to access the GET parameters after “?” in Express?
...iated with the '?'
Example:
GET /something?color1=red&color2=blue
Then in express, the handler:
app.get('/something', (req, res) => {
req.query.color1 === 'red' // true
req.query.color2 === 'blue' // true
})
...
Pass in an array of Deferreds to $.when()
...tion.prototype.apply, so in this case you need:
$.when.apply($, my_array).then( ___ );
See http://jsfiddle.net/YNGcm/21/
In ES6, you can use the ... spread operator instead:
$.when(...my_array).then( ___ );
In either case, since it's unlikely that you'll known in advance how many formal param...
How to do a logical OR operation in shell scripting
...
This should work:
#!/bin/bash
if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then
echo "hello"
fi
I'm not sure if this is different in other shells but if you wish to use <, >, you need to put them inside double parenthesis like so:
if (("$#" > 1))
...
...
How do I commit only some files?
...
I suppose you want to commit the changes to one branch and then make those changes visible in the other branch. In git you should have no changes on top of HEAD when changing branches.
You commit only the changed files by:
git commit [some files]
Or if you are sure that you have ...
Select top 10 records for each category
...ROM table
) rs WHERE Rank <= 10
If your RankCriteria has ties then you may return more than 10 rows and Matt's solution may be better for you.
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Find the Smallest Integer Not in a List
...
If the datastructure can be mutated in place and supports random access then you can do it in O(N) time and O(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placing any value at that locatio...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...explicitly do "0" == false, both sides are being converted to numbers, and then the comparison is performed.
When you do: if ("0") console.log("ha"), the string value is being tested. Any non-empty string is true, while an empty string is false.
Equal (==)
If the two operands are not of th...
Is it possible to Turn page programmatically in UIPageViewController?
... 2 pages of content at a time. If you display 1 page of content at a time, then just pass in a 1-element array.
An example in Swift:
pageContainer.setViewControllers([displayThisViewController], direction: .Forward, animated: true, completion: nil)
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How to install a private NPM module without my own registry?
...
The path/to/somedir solution kind of works, but then it's kind of awful because all of the require statements then have to include that relative or absolute path. Please correct me if I'm doing something wrong...
– Luke Bayes
Oct 25 '...