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Get image data url in JavaScript?
... and un-multiplied.
All browsers and devices will have different rounding errors happening in this process
(see Canvas fingerprinting).
So if one wants a base64 version of an image file, they have to request it again (most of the time it will come from cache) but this time as a Blob.
Then you c...
How to get RGB values from UIColor?
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error: <EXPR>:3:1: error: 'CGColorGetComponents' has been replaced by property 'CGColor.components'
– pkamb
Dec 7 '18 at 1:44
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List OrderBy Alphabetical Order
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This answer demonstates most common error when using LINQ - methods like OrderBy do not modify list, but rather return new "collection" (usually lazy IEnumerable<T>) that need to be assigned to something.
– Alexei Levenkov
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Best way to assert for numpy.array equality?
...s now my favorite since it allows us to specify both absolute and relative error and doesn't require decimal rounding as the closeness criterion.
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How to do parallel programming in Python?
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Unfortunately this ends in an ` unhashable type: 'list'` error
– The Bndr
Jun 10 '15 at 14:55
in add...
vbscript output to console
...eLine "This will go to standard output."
stderr.WriteLine "This will go to error output."
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Does Swift have documentation generation support?
...n bold.
/// - requires: A basic understanding of Markdown.
/// - seealso: `Error`, for a description of the errors that can be thrown.
///
/// - parameters:
/// - int: A pointless `Int` parameter.
/// - bool: This `Bool` isn't used, but its default value is `false` anyway…
/// - throws: A `Bad...
How to change column order in a table using sql query in sql server 2005?
...en click save. This method actually drops and recreates the table, so some errors might occur.
If Change Tracking option is enabled for the database and the table, you shouldn't use this method.
If it is disabled, the Prevent saving changes that require the table re-creation option should be clear...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...ch other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done ...
What is the scope of variables in JavaScript?
...perties on the global object.
Examples
The following will throw a ReferenceError because the namesx, y, and z have no meaning outside of the function f.
function f() {
var x = 1
let y = 1
const z = 1
}
console.log(typeof x) // undefined (because var has function scope!)
console.log(t...