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What's the difference between equal?, eql?, ===, and ==?
...qual.
"koan" != "discursive thought" # Output: => true
Note that two arrays with the same elements in a different order are not equal, uppercase and lowercase versions of the same letter are not equal and so on.
When comparing numbers of different types (e.g., integer and float), if their nu...
Accessing an SQLite Database in Swift
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AppDelegate.swift
func createDatabase()
{
var path:Array=NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
let directory:String=path[0]
let DBpath=(directory as NSString).appen...
How to do multiple arguments to map function where one remains the same in python?
...r these types of operations:
>>> import numpy
>>> numpy.array([1,2,3]) + 2
array([3, 4, 5])
This is assuming your real application is doing mathematical operations (that can be vectorized).
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Difference between res.send and res.json in Express.js
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The methods are identical when an object or array is passed, but res.json() will also convert non-objects, such as null and undefined, which are not valid JSON.
The method also uses the json replacer and json spaces application settings, so you can format JSON with mo...
iOS - forward all touches through a view
...ow, any touch on the side buttons (included in the * viewsWithActiveTouch* array) will be given to the buttons, while any touch on the stackview anywhere else than these views won't be intercepted, and therefore passed to whatever is below the stack view.
/** Subclass of UIStackView that does not a...
php is null or empty?
...use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal.
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✔ Checkmark selected row in UITableViewCell
...n my tableview cell. Once, I do that, I save the check objects in a global array. However, when I use that array to compare inside my 'didSelectRowAtIndexPath' method to see if the indexpath matches to this object inside my global array. I am not able to find it. I think its the [tableView reloadDat...
Removing all empty elements from a hash / YAML?
... rails version, that also works with values of other types than Array, Hash, or String (like Fixnum): swoop = Proc.new { |k, v| v.delete_if(&swoop) if v.kind_of?(Hash); v.blank? }
– wdspkr
Apr 22 '14 at 12:29
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Parcelable encountered IOException writing serializable object getactivity()
...this I passed the custom class to the intent and also I've created a byte array from the image and pass it separatly to the intent:
selectedItem is my custom object and getPlacePhoto is his method to get image. I've already set it before and now I just get it first than convert it and pass it sepa...
How can I split a JavaScript string by white space or comma?
...ural sentences sooner or later you'll end up getting empty elements in the array. e.g. ['foo', '', 'bar'].
Which is fine if that's okay for your use case. But if you want to get rid of the empty elements you can do:
var str = 'whatever your text is...';
str.split(/[ ,]+/).filter(Boolean);
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