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How to find first element of array matching a boolean condition in JavaScript?
...for arrays; this stops enumerating the array once it finds the first match and returns the value.
const result = someArray.find(isNotNullNorUndefined);
Old answer:
I have to post an answer to stop these filter suggestions :-)
since there are so many functional-style array methods in ECMAScript, p...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...
To answer my own question, this functionality has been added to pandas in the meantime. Starting from pandas 0.15.0, you can use tz_localize(None) to remove the timezone resulting in local time.
See the whatsnew entry: http://pandas.pydata.org/pandas-docs/stable/whatsnew.html#timezone-hand...
When vectors are allocated, do they use memory on the heap or the stack?
... store.
vector<Type*> vect;
will allocate the vector on the stack and a bunch of pointers on the free store, but where these point is determined by how you use them (you could point element 0 to the free store and element 1 to the stack, say).
...
Can JSON start with “[”?
... read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON.
...
How to clear MemoryCache?
.... What is the quickest way to do this? Should I loop through all the items and remove them one at a time or is there a better way?
...
How to disable CSS in Browser for testing purposes
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The Web Developer plugin for Firefox and Chrome is able to do this
Once you have installed the plugin the option is available in the CSS menu. For example, CSS > Disable Styles > Disable All Styles
Alternatively with the developer toolbar enabled you ...
How to convert an int to string in C?
...
EDIT: As pointed out in the comment, itoa() is not a standard, so better use sprintf() approach suggested in the rivaling answer!
You can use itoa() function to convert your integer value to a string.
Here is an example:
int num = 321;
char snum[5];
// convert 123 to string...
Understanding Node.js modules: multiple requires return the same object?
...
If both app.js and b.js reside in the same project (and in the same directory) then both of them will receive the same instance of A. From the node.js documentation:
... every call to require('foo') will get exactly the same object retu...
How is the default submit button on an HTML form determined?
...ing equivalent), then none of the submit buttons are considered successful and none of their values are included in the submitted data. (Note that if you submit the form by using submitElement.click() then the submit that you had a reference to is considered active; this doesn't really fall under t...
Strip spaces/tabs/newlines - python
...lied: runs of consecutive whitespace are regarded as a single
separator, and the result will contain no empty strings at the start
or end if the string has leading or trailing whitespace.
Demo:
>>> myString.split()
['I', 'want', 'to', 'Remove', 'all', 'white', 'spaces,', 'new', 'line...