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Why `null >= 0 && null

...utine that increments the value of a variable by 1 if its type is number and assigns 0 to the variable if not, where the variable is initially null or undefined . ...
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Gmail Error :The SMTP server requires a secure connection or the client was not authenticated. The s

...in from different time zone or IP Address Computer. Your production server and the mail id you have used both are in different time zone. Choose either of these two solutions: 1) Log in to production server via remote access, and sign in to gmail once with your credentials. They will ask for the co...
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What is the difference between ng-if and ng-show/ng-hide

I'm trying to understand the difference between ng-if and ng-show / ng-hide , but they look the same to me. 12 Answers ...
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How to read data when some numbers contain commas as thousand separator?

... some of the numerical values are expressed as strings with commas as thousand separator, e.g. "1,513" instead of 1513 . What is the simplest way to read the data into R? ...
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If list index exists, do X

In my program, user inputs number n , and then inputs n number of strings, which get stored in a list. 12 Answers ...
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How can I configure NetBeans to insert tabs instead of a bunch of spaces?

... Go to Tools-> Options-> Editor-> Formatting and uncheck Expand tabs to spaces: Ensure you also pick coherent values for "Number of Spaces per indent" and "Tab Size". Additionally, you can check all the items in the Language combo and make sure they all use the ge...
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How to parse the AndroidManifest.xml file inside an .apk package

This file appears to be in a binary XML format. What is this format and how can it be parsed programmatically (as opposed to using the aapt dump tool in the SDK)? ...
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How to add multiple files to Git at the same time

... git commit -a is shorthand for git commit --all, so yes, it will. – dax Jul 12 '16 at 15:15 1 ...
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Difference between setTimeout with and without quotes and parentheses

I am learning JavaScript and I have learned recently about JavaScript timing events. When I learned about setTimeout at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function. ...
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Extracting just Month and Year separately from Pandas Datetime column

... If you want new columns showing year and month separately you can do this: df['year'] = pd.DatetimeIndex(df['ArrivalDate']).year df['month'] = pd.DatetimeIndex(df['ArrivalDate']).month or... df['year'] = df['ArrivalDate'].dt.year df['month'] = df['ArrivalDat...