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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
...stead of an instance of whatever Class or Object you think you're working with, you've actually got None. That usually means that an assignment or function call up above failed or returned an unexpected result.
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Any way to Invoke a private method?
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You can invoke private method with reflection. Modifying the last bit of the posted code:
Method method = object.getClass().getDeclaredMethod(methodName);
method.setAccessible(true);
Object r = method.invoke(object);
There are a couple of caveats. First...
How to mock localStorage in JavaScript unit tests?
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Here is a simple way to mock it with Jasmine:
beforeEach(function () {
var store = {};
spyOn(localStorage, 'getItem').andCallFake(function (key) {
return store[key];
});
spyOn(localStorage, 'setItem').andCallFake(function (key, value) {
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How to turn off CodeLens-References
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edited Jun 3 '14 at 21:46
answered Jan 4 '14 at 20:04
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A method to reverse effect of java String.split()? [duplicate]
I am looking for a method to combine an array of strings into a delimited
String. An opposite to split().
16 Answers
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Installing SciPy with pip
It is possible to install NumPy with pip using pip install numpy .
15 Answers
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What is the difference between onBlur and onChange attribute in HTML?
When is one called versus the other? Is there a situation were onChange would be called but onBlur would not be called?
7 A...
Which equals operator (== vs ===) should be used in JavaScript comparisons?
I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.length == 0 inside of an if statement.
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Show data on mouseover of circle
...m plotting in a scatter. When I mouseover one of the circles I would like it to popup with data (like x, y values, maybe more). Here is what I tried using:
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How to delete duplicate rows in SQL Server?
...ted), therefore just change the DELETE FROM CTE... to SELECT * FROM CTE:
WITH CTE AS(
SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7],
RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1)
FROM dbo.Table1
)
DELETE FROM CTE WHERE RN > 1
DEMO (result is different; I ...