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Drop columns whose name contains a specific string from pandas DataFrame
... 2.0 NaN NaN 1.0
1 20.0 NaN 10.0 5.0 NaN
Now filter
df.filter(like='result',axis=1)
Get..
result1 result34
0 2.0 NaN
1 NaN 10.0
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Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
...why we can call this method by its class name (like Arrays.asList(T...a) )
Now here is the twist, please note that this method doesn't create new ArrayList object, it just returns a List reference to existing Array object(so now after using asList method, two references to existing Array object gets...
How to get random value out of an array?
...ased to mt_rand() and srand() aliased to mt_srand(). In practice it should now be good enough.
– Gras Double
Jun 29 '17 at 11:17
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How to get a resource id with a known resource name?
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Thankq for your reply .R.drawable.resourcename i am using now i need to get its integer value by passing resourcename
– Aswan
Aug 13 '10 at 11:45
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How to uncheck a radio button?
... explanation on the difference between attr() and prop() and why prop() is now preferable.
prop() was introduced with jQuery 1.6 in May 2011.
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How to set timeout on python's socket recv method?
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It's better now, but I don't see where the answer was "explicitly rejected".
– nosklo
Apr 28 '10 at 18:31
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use localStorage across subdomains
...afari 7+ both on desktop and mobile to block 3rd party data. The option is now called "Block cookies and other website data" which refers to things like localstorage which are now completely isolated by domain. This method wont work in Safari
– Aranganathan
Jul...
FIND_IN_SET() vs IN()
..."aname".
Let's take table B which has columns named "bid","bname","aids".
Now there are dummy values in Table A and Table B as below.
Table A
aid aname
1 Apple
2 Banana
3 Mango
Table B
bid bname aids
1 Apple 1,2
2 Banana 2,1
3 Mango 3,1,2
enter code here
Case...
@RequestBody and @ResponseBody annotations in Spring
... private String description;
// + getters, setters, constructor
}
Now if you have Jackson on your classpath (and have an <mvc:annotation-driven> setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody annotation) and ...
How to append something to an array?
...much this has changed in the past four years. (jsperf would be handy right now.)
– Paul Draper
May 26 '14 at 20:07
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