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How to drop rows of Pandas DataFrame whose value in a certain column is NaN
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Creates Error: TypeError: ufunc 'isfinite' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''
– Philipp Schwarz
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Java String - See if a string contains only numbers and not letters
...75% strings contain non-digit symbols)
Benchmark Mode Cnt Score Error Units
testIsDigit thrpt 5 9.275 ± 2.348 ops/s
testPattern thrpt 5 2.135 ± 0.697 ops/s
testParseLong thrpt 5 0.166 ± 0.021 ops/s
## Test load with 50% valid strings (50% strings contain non-dig...
FAQ Section: SMS - Frequently Asked Questions - MIT App Inventor Community
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1
Error 908: Permission Receive SMS - Taifun
Sending an SMS text via the Activity Starter - Joseph Sepielli
SMS stopped auto-sending because of Google policy change - TimAI2, Hal@mit
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Sending a message to nil in Objective-C
...otten your ArrayList from a method which returns NULL if it runs into some error generating the ArrayList like someObject.foo(otherObject.getArrayList());
Of course, you'll also have problems if you do something like this:
ArrayList list = NULL;
list.size();
Now, in Objective-C, we have the equi...
An App ID with Identifier '' is not available. Please enter a different string
...add a new APP ID to prepare for App Store submission and got the following error under the bundle ID I provided.
44 Answers...
What would a “frozen dict” be?
...rom putting a mutable list as a value, in which case hashing will throw an error. There's nothing necessarily wrong with that, but users should be aware. Another thing: This hashing algorithm is poorly chosen, very prone to hash collisions. For example {'a':'b'} hashes the same as {'b':'a'} and {'a'...
Javascript calculate the day of the year (1 - 366)
... need to remove the -- from --m.
Note this assumes a valid date (although error-checking is just some characters more).
function dayNo(y,m,d){
return --m*31-(m>1?(1054267675>>m*3-6&7)-(y&3||!(y%25)&&y&15?0:1):0)+d;
}
<!-- some examples for the snippet -->...
Rails 4 multiple image or file upload using carrierwave
... from saving. Instead the post is saved, and then the ActiveRecord invalid error is thrown for the attachment model only. I think this is because of the create! method. but using create instead just fails silently. Any idea how to have the validation happen on the post reach into the attachments?
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How to get xdebug var_dump to show full object/array
...because the json_encoded data is a string it means you can write it to the error log easily
error_log(json_encode($myvar));
It probably isn't the best choice for every situation, but it's a choice!
share
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Unmarshaling nested JSON objects
...// takes foo.baz
More string
}
func (a *A) UnmarshalJSON(b []byte) error {
var f interface{}
json.Unmarshal(b, &f)
m := f.(map[string]interface{})
foomap := m["foo"]
v := foomap.(map[string]interface{})
a.FooBar = v["bar"].(string)
a.FooBaz = v["baz"].(str...