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How to write an inline IF statement in JavaScript?
...assigned to anything. The right hand side elements can simply be function calls.
– jfriend00
Apr 22 '12 at 17:41
7
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List all sequences in a Postgres db 8.1 with SQL
... sequences.
SELECT c.relname FROM pg_class c WHERE c.relkind = 'S';
Typically a sequence is named as ${table}_id_seq. Simple regex pattern matching will give you the table name.
To get last value of a sequence use the following query:
SELECT last_value FROM test_id_seq;
...
How do I set the value property in AngularJS' ng-options?
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To send a custom value called my_hero to the server using a normal form submit:
JSON:
"heroes": [
{"id":"iron", "label":"Iron Man Rocks!"},
{"id":"super", "label":"Superman Rocks!"}
]
HTML:
<select ng-model="hero" ng-options="obj.id as ...
Django set default form values
...ich is explained here
You have two options either populate the value when calling form constructor:
form = JournalForm(initial={'tank': 123})
or set the value in the form definition:
tank = forms.IntegerField(widget=forms.HiddenInput(), initial=123)
...
Is there a way to iterate over a dictionary?
... what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ?
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What is the best way to add options to a select from a JavaScript object with jQuery?
... I would first of all assign $("#mySelect") to a var, otherwise calling $("#mySelect") every time inside the loop is very wasteful, as is updating the DOM. See points #3 and #6 at artzstudio.com/2009/04/jquery-performance-rules/…
– Patrick
Oct 12 '...
jQuery pass more parameters into callback
Is there a way to pass more data into a callback function in jQuery?
14 Answers
14
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How to Implement DOM Data Binding in JavaScript
...both the element and the .data property. And the same will happen when you call .change() in your JavaScript program.
Using the code
Now you'd just create the new object, and let it perform updates. Updates in JS code will appear on the input, and change events on the input will be visible to the ...
Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (
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That's a side-effect of a feature called optimistic concurrency.
Not 100% sure how to turn it on/off in Entity Framework but basically what it's telling you is that between when you grabbed the data out of the database and when you saved your changes someone...
How do you turn a Mongoose document into a plain object?
... finally got it. for the ones who have toObject undefined, make sure to call on document instead of model. i.e. modelName._doc.toObject()
– John
Jun 23 '15 at 16:55
1
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