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Why would you use Expression rather than Func?
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When you want to treat lambda expressions as expression trees and look inside them instead of executing them. For example, LINQ to SQL gets the expression and converts it to the equivalent SQL statement and submits it to server (rather than executing the lambda).
Conceptually, Expression<Fun...
Capture Signature using HTML5 and iPad
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Here's another canvas based version with variable width (based on drawing velocity) curves: demo at http://szimek.github.io/signature_pad and code at https://github.com/szimek/signature_pad.
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AngularJS validation with no enclosing
Is it possible in Angular to validate a single, isolated <input> in a similar way the forms are validated? I'm thinking about something like this:
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PreparedStatement IN clause alternatives?
What are the best workarounds for using a SQL IN clause with instances of java.sql.PreparedStatement , which is not supported for multiple values due to SQL injection attack security issues: One ? placeholder represents one value, rather than a list of values.
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Get a list of checked checkboxes in a div using jQuery
I want to get a list of names of checkboxes that are selected in a div with certain id. How would I do that using jQuery?
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Create a matrix of scatterplots (pairs() equivalent) in ggplot2
Is it possible to plot a matrix of scatter plots with ggplot2 , using ggplot 's nice features like mapping additional factors to color, shape etc. and adding smoother?
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ASP.NET WebApi unit testing with Request.CreateResponse
I am trying to write some unit tests for my ApiController and faced some issues. There is a nice extension method called Request.CreateResponse that helps a lot with generating response.
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How do I include related model fields using Django Rest Framework?
Let's say that we have the following model:
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PHP function to build query string from array
I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...
How do I return clean JSON from a WCF Service?
I am trying to return some JSON from a WCF service. This service simply returns some content from my database. I can get the data. However, I am concerned about the format of my JSON. Currently, the JSON that gets returned is formatted like this:
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