What's the meaning of interface{}?
Note: Go 1.18 (Q1 2022) does rename interface{} to any (alias for interface{}). See issue 49884, CL 368254 and commit 2580d0e. See the last part of this answer. You can refer to the article "How to use interfaces in Go" (based on "Russ Cox’s description of interfaces"): What is an interface? An interface is two things: it is a set of methods, but it is also a type The interface{} type (or any with
How to specify a property can be null or a reference with swagger
How to specify a property as null or a reference? discusses how to specify a property as null or a reference using jsonschema. I'm looking to do the same thing with swagger. To recap the answer to the above, with jsonschema, one could do this: { "definitions": { "Foo": { # some complex object } }, "type": "object", "properties": { "foo": { "oneOf": [ {"$ref": "#/definitions/Foo"}, {"type": "null"}
What heuristics do browsers use to cache resources not explicitly set to be cachable?
13.2.2 Heuristic Expiration Since origin servers do not always provide explicit expiration times, HTTP caches typically assign heuristic expiration times, employing algorithms that use other header values (such as the Last-Modified time) to estimate a plausible expiration time. The HTTP/1.1 specification does not provide specific algorithms, but does impose worst-case constraints on their results.
When to use symbols instead of strings in Ruby?
TL;DR A simple rule of thumb is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks. Full answer The only reason not to use them for identifiers that are generated dynamically is because of memory concerns. This question is very common because many programming languages don't have symbols, only strin
Rails: on-the-fly streaming of output in zip format?
Short Version https://github.com/fringd/zipline Long Version so jo5h's answer didn't work for me in rails 3.1.1 i found a youtube video that helped, though. http://www.youtube.com/watch?v=K0XvnspdPsc the crux of it is creating an object that responds to each... this is what i did: class ZipGenerator def initialize(model) @model = model end def each( &block ) output = Object.new output.define_singl
403 Forbidden vs 401 Unauthorized HTTP responses
For a web page that exists, but for which a user does not have sufficient privileges (they are not logged in or do not belong to the proper user group), what is the proper HTTP response to serve? 401 Unauthorized? 403 Forbidden? Something else? What I've read on each so far isn't very clear on the difference between the two. What use cases are appropriate for each response?
What are some examples of commonly used practices for naming git branches?
I've been using a local git repository interacting with my group's CVS repository for several months, now. I've made an almost neurotic number of branches, most of which have thankfully merged back into my trunk. But naming is starting to become an issue. If I have a task easily named with a simple label, but I accomplish it in three stages which each include their own branch and merge situation,
REST API Best practice: How to accept list of parameter values as input
A Step Back First and foremost, REST describes a URI as a universally unique ID. Far too many people get caught up on the structure of URIs and which URIs are more "restful" than others. This argument is as ludicrous as saying naming someone "Bob" is better than naming him "Joe" – both names get the job of "identifying a person" done. A URI is nothing more than a universally unique name. So in RES
Validation for URL/Domain using Regex? (Rails)
I am trying to create a validation that checks to make sure a domain/url is valid for example "test.com" def valid_domain_name? domain_name = domain.split(".") name = /(?:[A-Z0-9\-])+/.match(domain_name[0]).nil? tld = /(?:[A-Z]{2}|aero|ag|asia|at|be|biz|ca|cc|cn|com|de|edu|eu|fm|gov|gs|jobs|jp|in|info|me|mil|mobi|museum|ms|name|net|nu|nz|org|tc|tw|tv|uk|us|vg|ws)/.match(domain_name[1]).nil? if nam
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Types for function that applys name of function and arguments
Why should text files end with a newline?
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