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Get users by name property using Firebase
..."age": 28 })
Append to lists with an auto-generated key that will automatically sort by time written:
ref.child('users').push({ "first_name": "rob", "age": 28 })
Listen for changes in data by its unique, known path:
ref.child('users').child('123').on('value', function(snapshot) { ... })
Filter ...
how to convert binary string to decimal?
...l JS practicing could be
var bin2int = s => Array.prototype.reduce.call(s, (p,c) => p*2 + +c)
console.log(bin2int("101010"));
where +c coerces String type c to a Number type value for proper addition.
share...
requestFeature() must be called before adding content
...
Well, just do what the error message tells you.
Don't call setContentView() before requestFeature().
Note:
As said in comments, for both ActionBarSherlock and AppCompat library, it's necessary to call requestFeature() before super.onCreate()
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What is a 'multi-part identifier' and why can't it be bound?
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It's probably a typo. Look for the places in your code where you call [schema].[TableName] (basically anywhere you reference a field) and make sure everything is spelled correctly.
Personally, I try to avoid this by using aliases for all my tables. It helps tremendously when you can short...
Posting a File and Associated Data to a RESTful WebService preferably as JSON
...:
How do I upload a file with metadata using a REST web service?
You basically have three choices:
Base64 encode the file, at the expense of increasing the data size by around 33%, and add processing overhead in both the server and the client for encoding/decoding.
Send the file first in a multi...
MySQL vs MongoDB 1000 reads
... very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
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What is the purpose of mock objects?
...'s terms, can someone explain what mock objects are, and what they are typically used for when writing unit tests?
11 Answe...
Can you control how an SVG's stroke-width is drawn?
...t be the case. To solve this I've written a wrapper function for getBBox() called getStrokedBBox(). This wrapper returns the BBox according to how the browser applies strokes to the inset and offset of a shape. It's not perfect (need to keep checking against latest browser versions) but it does accu...
Sequelize.js: how to use migrations and sync
...e names of
// pending migrations.
});
Then execute migrations (inside callback). The execute method is a general purpose function that runs for every specified migrations the respective function:
umzug.execute({
migrations: ['some-id', 'some-other-id'],
method: 'up'
}).then(function (migra...
jQuery Multiple ID selectors
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it should. Typically that's how you do multiple selectors. Otherwise it may not like you trying to assign the return values of three uploads to the same var.
I would suggest using .each or maybe push the returns to an array rather than as...