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What is the difference between -viewWillAppear: and -viewDidAppear:?

...gether with the view, right away, I put it in the ViewDidLoad method. Basically this method is called whenever the view was loaded into memory. So for example, if my view is a form with 3 labels, I would add the labels here; the view will never exist without those forms. 2) ViewWillAppear: I use Vi...
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How to make Sequelize use singular table names

I have an model called User but Sequelize looks for the table USERS whenever I am trying to save in the DB. Does anyone know how to set Sequelize to use singular table names? Thanks. ...
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Is it possible to pass a flag to Gulp to have it run tasks in different ways?

Normally in Gulp tasks look like this: 11 Answers 11 ...
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Should a retrieval method return 'null' or throw an exception when it can't produce the return value

... in regards to something like a repository pattern for example. Is it typically considered exceptional for an object not to exist given a primary key? Yes, that is something his domain will determine, but what do most experts with years of experience suggest? That's the type of answer we should see....
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When to use a Content Provider

I understand that Content Providers are made to allow publicly sharing data between applications. However, I'm wondering if anyone has thoughts about making a Content Provider to use just within your own app. Would there be any advantages to doing this? Any disadvantages? ...
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What is the difference between and ?

...is a thematic grouping of content. Each section should be identified, typically by including a heading (h1-h6 element) as a child of the <section> element. Examples of sections would be chapters, the various tabbed pages in a tabbed dialog box, or the numbered sections of a thesis. A Web site...
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Is a Java string really immutable?

We all know that String is immutable in Java, but check the following code: 15 Answers ...
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Which MySQL data type to use for storing boolean values

...'N' or 'T'/'F' etc. depending upon the context. The advantage of using a small integer type is that you get maximum portability across RDBMS-es – Roland Bouman May 15 '10 at 22:42 ...
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Performing regex Queries with pymongo

... : db.collectionname.find({'files':{'$regex':'^File'}}) This will match all documents that have a files property that has a item within that starts with File share | improve this answer ...
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How to Right-align flex item?

... Thanks. Would you personally prefer this over Yohann Tilotti's display table method above? If so, why? – Mark Boulder Mar 16 '14 at 4:19 ...