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Static member functions error; How to properly write the signature?
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@narengi: because that's how the C++ standard defines the grammar.
– Oliver Charlesworth
Jan 27 '15 at 8:28
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What is choice_set in this Django app tutorial?
... automatically, or if you have more than one foreign key to the same model and need to distinguish them, you can choose your own overriding name using the related_name argument to ForeignKey.
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What does the -ObjC linker flag do?
I have an app that works with and without the linker flag. However, without the linker flag, I get a very different behaviour when adding data to a view.
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How do I jump out of a foreach loop in C#?
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Use break; and this will exit the foreach loop
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How do I select an element with its name attribute in jQuery? [duplicate]
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jQuery("[name='test']")
Although you should avoid it and if possible select by ID (e.g. #myId) as this has better performance because it invokes the native getElementById.
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Knockout.js bound input value not updated when I use jquery .val('xyz')
... I had this bug before I realized it should be data-bind="value:location" and NOT data-bind="value:location()"
– ansielf
Jan 30 '18 at 15:24
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Can I click a button programmatically for a predefined intent?
...splaying UI.
Can I get the "Send" button click from the MMS-SMSProvider in Android?
3 Answers
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Can I make the foreign key field optional in Django model
... database to allow NULL values for that field. The exception is CharFields and TextFields, which in Django are never saved as NULL. Blank values are stored in the DB as an empty string ('').
– fang_dejavu
Jun 20 '16 at 18:32
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How can I shuffle an array? [duplicate]
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for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}
ES2015 (ES6) version
/**
* Shuffles array in place. ES6 version
* @param {Array} a items An array containing the items.
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ggplot: How to increase spacing between faceted plots?
I have several faceted histograms (obtained with the command below) which are nicely plotted one under the other. I would like to increase the spacing between them, however, they are tight.
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