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Which is the first integer that an IEEE 754 float is incapable of representing exactly?
For clarity, if I'm using a language that implements IEE 754 floats and I declare:
2 Answers
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What is the meaning of “vnd” in MIME types?
Reading up on content providers, I keep wondering why both the category and type of Android MIME types are prefixed with vnd. For example:
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Attach parameter to button.addTarget action in Swift
...parameters in addTarget:.One alternative is set the tag property of button and do work based on the tag.
button.tag = 5
button.addTarget(self, action: "buttonClicked:",
forControlEvents: UIControlEvents.TouchUpInside)
Or for Swift 2.2 and greater:
button.tag = 5
button.addTarget(self,action...
How to add to an existing hash in Ruby
...ash in Ruby, I'm in the process of working through Apress' Beginning Ruby and have just finished the hashes chapter.
7 Ans...
The specified type member 'Date' is not supported in LINQ to Entities. Only initializers, entity mem
... mentioned in comments, in Entity Framework 6 EntityFunctions is obsolete, and you should use DbFunctions class, which is shipped with Entity Framework.
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How to check if a file exists in the Documents directory in Swift?
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Nowadays (2016) Apple recommends more and more to use the URL related API of NSURL, NSFileManager etc.
To get the documents directory in iOS and Swift 2 use
let documentDirectoryURL = try! NSFileManager.defaultManager().URLForDirectory(.DocumentDirectory,
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contenteditable, set caret at the end of the text (cross-browser)
...ere's an example that creates functions for placing the caret at the start and at the end:
function createCaretPlacer(atStart) {
return function(el) {
el.focus();
if (typeof window.getSelection != "undefined"
&& typeof document.createRange != "undefined")...
Sass - Converting Hex to RGBa for background opacity
...the hex color into RGB components, though, you can use the red(), green(), and blue() functions to do so:
$red: red($color);
$green: green($color);
$blue: blue($color);
background: rgb($red, $green, $blue); /* same as using "background: $color" */
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What is the status of JSR 305?
...ion JSR305 vs. JSR308 (Java Type Anotations) - Which is going to be the standard? and I understand the difference between JSR 308 and JSR 305 .
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Unique Constraint in Entity Framework Code First
...h unique constraints... you may want to create indexes, check constraints, and possibly triggers and other constructs too. Here's a simple pattern you can use with your code-first setup, though admittedly it's not database agnostic:
public class MyRepository : DbContext {
public DbSet<Whate...