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Finding the id of a parent div using Jquery
...uery had something already... in my case i used $("#" + id).closest("div.form-group") to find the parent div who had the form-group class.
– cabaji99
May 19 '15 at 13:56
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Sequelize.js delete query?
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For anyone using Sequelize version 3 and above, use:
Model.destroy({
where: {
// criteria
}
})
Sequelize Documentation - Sequelize Tutorial
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What is the intent of the methods getItem and getItemId in the Android class BaseAdapter?
...) i can simply call the adapter like adapter.get(position).
The same goes for getItemId. Usually I would use this method when I want to execute some task based on the unique ID of an object in the list. This is especially useful when working with a database. The returned id could be a reference to ...
Comparing mongoose _id and strings
...method, if you wish to store a stringified version of the ObjectID in JSON format, or a cookie.
If you use ObjectID = require("mongodb").ObjectID (requires the mongodb-native library) you can check if results.userId is a valid identifier with results.userId instanceof ObjectID.
Etc.
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Using async/await for multiple tasks
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int[] ids = new[] { 1, 2, 3, 4, 5 };
Parallel.ForEach(ids, i => DoSomething(1, i, blogClient).Wait());
Although you run the operations in parallel with the above code, this code blocks each thread that each operation runs on. For example, if the network call takes 2...
In CMake, how can I test if the compiler is Clang?
We have a set of cross-platform CMake build scripts , and we support building with Visual C++ and GCC .
5 Answers
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How do I add a foreign key to an existing SQLite table?
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You can't.
Although the SQL-92 syntax to add a foreign key to your table would be as follows:
ALTER TABLE child ADD CONSTRAINT fk_child_parent
FOREIGN KEY (parent_id)
REFERENCES parent(id);
SQLite doesn't support the ADD CONSTRAINT ...
Select Multiple Fields from List in Linq
...i.category_name)
.ToArray();
Since you (apparently) need to store it for later use, you could use the GroupBy operator:
Data[] cats = listObject
.GroupBy(i => new { i.category_id, i.category_name })
.OrderByDescending(g => g.Key.category_name)
.Select(g => g.First())
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Are class names in CSS selectors case sensitive?
...itive within the ASCII range (i.e. [a-z] and [A-Z] are equivalent), except for parts that are not under the control of Selectors. The case sensitivity of document language element names, attribute names, and attribute values in selectors depends on the document language.
So, given an HTML element ...
Convert string to number and add one
...ner, fair enough. Brackets can help clarify the order of execution too. +1 for a clear quick answer though. Just bet me to it.
– Chris Snowden
Oct 6 '11 at 13:07
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