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How to combine two or more querysets in a Django view?
...tertools.chain is faster than looping each list and appending elements one by one, since itertools is implemented in C. It also consumes less memory than converting each queryset into a list before concatenating.
Now it's possible to sort the resulting list e.g. by date (as requested in hasen j's c...
Find out whether radio button is checked with JQuery?
...to check if one of these radio buttons was checked, you can do this simply by the following code :
$(document).ready(function(){
$('#submit_button').click(function() {
if (!$("input[name='name']:checked").val()) {
alert('Nothing is checked!');
return false;
}
else {
...
How to add an object to an array
...
@jdmayfield: JS's evaluation strategy is call by object-sharing. When objects are passed around, they're not copied. The mutations in those objects, while being passed around, are always immediately visible to the callers regardless whether the mutator was called asynchr...
How do I enable standard copy paste for a TextView in Android?
...
Try android:textIsSelectable.
i.e., android:textIsSelectable="true"
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Finding the handle to a WPF window
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
D3.js: what is 'g' in .append(“g”) D3.js code?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Difference between json.js and json2.js
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Thanks, so it appears that parseJSON has been replaced by JSON.parse? Also, what about toJSONString? Our existing code uses a lot of these methods: boolean.toJSONString() date.toJSONString() number.toJSONString() object.toJSONString() stri...
Change timestamps while rebasing git branch
...-date-is-author-date "[...]allows the user to lie about the committer date by using the same value as the author date" while --ignore-date "[...]allows the user to lie about the author date by using the same value as the committer date".
– Enrico Campidoglio
Fe...
UIPopovercontroller dealloc reached while popover is still visible
...en you don't need to keep a reference to the popover because it is managed by the presentation controller.
Code example (works both on iPhone and iPad):
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSour...
How do I get into a non-password protected Java keystore or change the password?
...uire a password, but your keystore definitely has a password, as indicated by:
In order to verify its integrity, you must provide your keystore password.
Java's default cacerts password is "changeit", unless you're on a Mac, where it's "changeme" up to a certain point. Apparently as of Mountai...