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Understanding Python's “is” operator
...ation for the is operator:
The operators is and is not test for object identity: x is y is true if and only if x and y are the same object.
Use the == operator instead:
print(x == y)
This prints True. x and y are two separate lists:
x[0] = 4
print(y) # prints [1, 2, 3]
print(x == y) # p...
Confused by python file mode “w+”
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Let's say you're opening the file with a with statement like you should be. Then you'd do something like this to read from your file:
with open('somefile.txt', 'w+') as f:
# Note that f has now been truncated to 0 bytes, so you'll only
# be able...
How to add ID property to Html.BeginForm() in asp.net mvc?
I want to validate my form using jquery but it doesn't have an ID property as of now how to add it to the form in asp.net mvc? I am using this...
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AngularJS - Multiple ng-view in single template
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ng-include will work if the files are hosted, for eg. on nodejs. If working with local directory, it would throw a cross domain error.
– Sid
Jun 6 '18 at 10:59
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Finding duplicate values in MySQL
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But how is this useful if you can't get the IDs of the rows with duplicate values? Yes, you can do a new query matching for each duplicate value, but is it possible to simply list the duplicates?
– NobleUplift
Jul 24 '14 at 14:41
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Angularjs loading screen on ajax request
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Add 'ngProgress' to your dependencies once you've included the script/css files in your HTML. Once you do that you can set up something like this, which will trigger when a route change was detected.
angular.module('app').run(function($rootScope, ngProgress) {
$rootScope.$on('$routeChangeStart',...
Track the time a command takes in UNIX/LINUX?
...is needed for that, else you'll get the error cannot run my_alias: No such file or directory.
– Jamie S
Sep 20 '18 at 17:28
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How to change identity column values programmatically?
I have a MS SQL 2005 database with a table Test with column ID . ID is an identity column.
13 Answers
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Hide keyboard when scroll UITableView
In my app i want hide keyboard when i start scrolling UITableView. I search about this in internet, and most answer is subclassing UITableView (http://stackoverflow.com/questions/3499810/tapping-a-uiscrollview-to-hide-the-keyboard).
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How to have conditional elements and keep DRY with Facebook React's JSX?
...at should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement.
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