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How do I add a placeholder on a CharField in Django?

...o solutions) you have the option to specify a custom widget for a field by setting the widgets attribute of the inner Meta class. class CommentForm(forms.ModelForm): class Meta: model = Comment widgets = { 'body': forms.Textarea(attrs={'cols': 80, 'rows': 20}) ...
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Git cherry pick vs rebase

...ust one more thing I want to add: if you git checkout topic and then git reset --hard C' after the cherry picking, then you have the very same result as after rebasing. I saved myself from a lot of merge conflicts using cherry picking over rebasing, because the common ancestor was way back. ...
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Split long commands in multiple lines through Windows batch file

...t6 one two And it is also possible to embed line feeds into the string: setlocal EnableDelayedExpansion set text=This creates ^ a line feed echo Test7: %text% echo Test8: !text! --- Output --- Test7: This creates Test8: This creates a line feed The empty line is important for the success. This...
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Iterating a JavaScript object's properties using jQuery

...th increasing indent: function enumerate(o,s){ //if s isn't defined, set it to an empty string s = typeof s !== 'undefined' ? s : ""; //iterate across o, passing keys as k and values as v $.each(o, function(k,v){ //if v has nested depth if(typeof v == "object"){ ...
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Is it possible to style html5 audio tag?

I haven't found any resources on how to do that. Something as simple as changing the color of the player would be nice to have :) ...
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Reasons for using the set.seed function

Many times I have seen the set.seed function in R, before starting the program. I know it's basically used for the random number generation. Is there any specific need to set this? ...
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Is PHP's count() function O(1) or O(n) for arrays?

... editor after snippets, if snippets enabled if (StackExchange.settings.snippets.snippetsEnabled) { StackExchange.using("snippets", function() { createEditor(); }); } else { createEditor(); ...
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Git: How to return from 'detached HEAD' state

... warning: unable to unlink web/sites/default/default.settings.php: Permission denied ... other warnings ... Note: checking out '1.87.1'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make i...
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Accurate way to measure execution times of php scripts

...urn current Unix timestamp with microseconds If get_as_float is set to TRUE, then microtime() returns a float, which represents the current time in seconds since the Unix epoch accurate to the nearest microsecond. Example usage: $start = microtime(true); while (...) { } $time_elapsed_...
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Calling remove in foreach loop in Java [duplicate]

...nes of code) way to remove duplicates is to dump the list into a LinkedHashSet (and then back into a List if you need). This preserves insertion order while removing duplicates. share | improve this...