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How do I clone a Django model instance object and save it to the database?

In the database, I want to add another object which is a copy of the object above. 13 Answers ...
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How do I detect “shift+enter” and generate a new line in Textarea?

Currently, if the person presses enter inside the text area, the form will submit. Good, I want that. 13 Answers ...
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The most accurate way to check JS object's type?

The typeof operator doesn't really help us to find the real type of an object. 8 Answers ...
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ReactJS SyntheticEvent stopPropagation() only works with React events?

I'm trying to use event.stopPropagation() within a ReactJS component to stop a click event from bubbling up and triggering a click event that was attached with JQuery in legacy code, but it seems like React's stopPropagation() only stops propagation to events also attached in React, and JQuery's sto...
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How to modify existing, unpushed commit messages?

I wrote the wrong thing in a commit message. 27 Answers 27 ...
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try {} without catch {} possible in JavaScript?

I have a number of functions which either return something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error. ...
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javascript check for not null

Below is a code snippet, where we retrieve a form value. Before further processing check if the value is not null.. 10 Answ...
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Switching to a TabBar tab view programmatically?

Let's say I have a UIButton in one tab view in my iPhone app, and I want to have it open a different tab in the tab bar of the TabBarController . How would I write the code to do this? ...
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Javascript - Track mouse position

I am hoping to track the position of the mouse cursor, periodically every t mseconds. So essentially, when a page loads - this tracker should start and for (say) every 100 ms, I should get the new value of posX and posY and print it out in the form. ...
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Is the C# static constructor thread safe?

In other words, is this Singleton implementation thread safe: 10 Answers 10 ...