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Meaning of epsilon argument of assertEquals for double values
...ilon would be 0 (100% accuracy, no exceptions). If you want a margin of error (say for degrees) you could set epsilon to 1 meaning that, for example, 64.2° is the same as 64.8° (since abs(64.8-64.2) < 1)
– Pieter De Bie
Sep 25 '15 at 8:14
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How to print Boolean flag in NSLog?
...= YES;
NSLog(flag ? @"Yes" : @"No");
?: is the ternary conditional operator of the form:
condition ? result_if_true : result_if_false
Substitute actual log strings accordingly where appropriate.
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What is the difference between a database and a data warehouse?
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Check out this for more information.
From a previous link:
Database
Used for Online Transactional Processing (OLTP) but can be used for other purposes such as Data Warehousing. This records the data from the user for history.
The tables ...
.gitignore exclude files in directory but not certain directories
This doesn't seem to be working. When I clone the project, there is no "application/cache" folder or "application/cache/folder" folder, etc...
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Add a fragment to the URL without causing a redirect?
...way nothing is added.
Try this...
window.location = '#';
Also, don't forget about the window.location.replace() method.
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Adding a column to a data.frame
...ve the data.frame below. I want to add a column that classifies my data according to column 1 ( h_no ) in that way that the first series of h_no 1,2,3,4 is class 1, the second series of h_no (1 to 7) is class 2 etc. such as indicated in the last column.
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Test if string is a number in Ruby on Rails
... There is no to_f in the above, and Float() doesn't exhibit that behavior: Float("330.346.11") raises ArgumentError: invalid value for Float(): "330.346.11"
– Jakob S
Nov 3 '11 at 10:29
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logger configuration to log to file and print to stdout
...m using Python's logging module to log some debug strings to a file which works pretty well. Now in addition, I'd like to use this module to also print the strings out to stdout. How do I do this? In order to log my strings to a file I use following code:
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Is null check needed before calling instanceof?
Will null instanceof SomeClass return false or throw a NullPointerException ?
7 Answers
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How to unit test a Node.js module that requires other modules and how to mock the global require fun
... while you are testing it.
This means you need no changes to your code in order to inject mocks for required modules.
Proxyquire has a very simple api which allows resolving the module you are trying to test and pass along mocks/stubs for its required modules in one simple step.
@Raynos is right ...