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Filter dataframe rows if value in column is in a set list of values [duplicate]
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edited Feb 25 at 0:45
Harvey
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ans...
Eclipse says: “Workspace in use or cannot be created, chose a different one.” How do I unlock a work
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J4cK
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answered Dec 13 '11 at 12:38
BorisBoris
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How do I know that the UICollectionView has been loaded completely?
...e / layout methods should be called. How do I know that?? Is there any delegate method to know UICollectionView loaded status?
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Chrome can't load web worker
I am working on a project that uses a web worker.
15 Answers
15
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Using usort in php with a class private function
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Make your sort function static:
private static function merchantSort($a,$b) {
return ...// the sort
}
And use an array for the second parameter:
$array = $this->someThingThatReturnAnArray();
usort($array, array('ClassName','merchantSort'));
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Get the last non-empty cell in a column in Google Sheets
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There may be a more eloquent way, but this is the way I came up with:
The function to find the last populated cell in a column is:
=INDEX( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ; ROWS( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ) )
So i...
How to obtain the query string from the current URL with JavaScript?
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Have a look at the MDN article about window.location.
The QueryString is available in window.location.search.
Solution that work in legacy browsers as well
MDN provide an example (no longer available in the above referenced article) of how to the get value of a single key available in the Q...
JavaScript moving element in the DOM
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Trivial with jQuery
$('#div1').insertAfter('#div3');
$('#div3').insertBefore('#div2');
If you want to do it repeatedly, you'll need to use different selectors since the divs will retain their ids as they are moved around.
$(function() {
setInterval( function() {
$('div:first').in...
iphone/ipad: How exactly use NSAttributedString?
Yes, many people are saying about Rich Text in iPhone/iPad and many knows about NSAttributedString .
9 Answers
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Difference between “module.exports” and “exports” in the CommonJs Module System
...started/what-is-require ), it states that "If you want to set the exports object to a function or a new object, you have to use the module.exports object."
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