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Why does jQuery or a DOM method such as getElementById not find the element?

... the DOM and scripts are (generally) executed as they're encountered. This means that order matters. Typically, scripts can't find elements which appear later in the markup because those elements have yet to be added to the DOM. Consider the following markup; script #1 fails to find the <div>...
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Should I use PATCH or PUT in my REST API?

...d} In case you wish to replace an entire Group. This does not necessarily mean that the server actually creates a new group and throws the old one out, e.g. the ids might remain the same. But for the clients, this is what PUT can mean: the client should assume he gets an entirely new item, based on...
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Many-to-many relationship with the same model in rails?

..., post_b_id: 16, category: "scolding"> >> b.posts(true) # 'true' means force a reload => [#<Post id: 16, name: "Eels are delicious!">] And we can also manipulate the post_connections and reverse_post_connections associations; it will neatly reflect in the posts association: &gt...
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Why can tuples contain mutable items?

...t would do. Wouldn't this be more of a design decision for what tuples are meant to be? – garg10may Oct 26 '17 at 10:41 ...
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Difference between partition key, composite key and clustering key in Cassandra?

...low_simple ( key text PRIMARY KEY, data text ); That means that it is made by a single column. But the primary key can also be COMPOSITE (aka COMPOUND), generated from more columns. create table stackoverflow_composite ( key_part_one text, key_part_two int, ...
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How to check if a function exists on a SQL database

...' )) DROP FUNCTION [dbo].[foo] GO This approach to deploying changes means that you need to recreate all permissions on the object so you might consider ALTER-ing if Exists instead. share | im...
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creating a strikethrough text?

Can I create a strikethrough text in Android, I mean adding a special value in the TextView tag that can make this possible? ...
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When exactly are onSaveInstanceState() and onRestoreInstanceState() called?

...uarantees about whether it will occur before or after onPause()" Does that mean if we try to access a view (to get some value to save, like an index from a listview) we might run into NullPointerExceptions? – Tiago Feb 23 '15 at 21:56 ...
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ASP.NET MVC Ajax Error handling

...p broadcast.oreilly.com/2011/06/… : "Failing to realize that a 4xx error means I messed up and a 5xx means you messed up" - where I is the client and you is the server. – Chris Nevill Oct 7 '14 at 10:07 ...
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PHP + MySQL transactions examples

...ery'); $db->query('third query'); // If we arrive here, it means that no exception was thrown // i.e. no query has failed, and we can commit the transaction $db->commit(); } catch (\Throwable $e) { // An exception has been thrown // We must rollback the transaction...