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Renaming table in rails
...ion:
class RenameFoo < ActiveRecord::Migration
def self.up
rename_table :foo, :bar
end
def self.down
rename_table :bar, :foo
end
end
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Is there a recommended way to return an image using ASP.NET Web API
...ageName}, {width} and {height} parameters.
public HttpResponseMessage Get(string imageName, int width, int height)
{
Image img = GetImage(imageName, width, height);
using(MemoryStream ms = new MemoryStream())
{
img.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
HttpR...
Inheriting class methods from modules / mixins in Ruby
...e of methods. To support these things, you can give class_eval a heredoc (string) instead of a block: base.class_eval <<-'END'
– Paul Donohue
May 15 at 15:10
add a comm...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...A.class.isAssignableFrom(b.getClass());
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(TestPerf2.class.getSimpleName())
.warmupIterations(20)
.measurementIterations(2000)
...
Generate random numbers uniformly over an entire range
...t generate numbers uniformly (it depends on the range and the value of RAND_MAX), and is therefore discouraged.
C++11 and generation over a range
With C++11 multiple other options have risen. One of which fits your requirements, for generating a random number in a range, pretty nicely: std::uniform_...
How to convert `git:` urls to `http:` urls
...written to start, instead, with <base>. When more than one insteadOf strings match a given URL, the longest match is used.
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How to set a Javascript object values dynamically?
...xed up the name of the variable and its value. But indexing an object with strings to get at its properties works fine in JavaScript.
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Get value of dynamically chosen class constant in PHP
...that, you're calling another function because, I guess, you don't like the string to be concatenated with delimiters?
– ReSpawN
Nov 3 '16 at 13:26
5
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How to set the style -webkit-transform dynamically using JavaScript?
...
So is the only way to do this with a string. Seems like it would be pretty slow if it was recursive.
– BBaysinger
Dec 3 '18 at 22:10
...
Jackson how to transform JsonNode to ArrayNode without casting?
...xample:
JSON:
{
"objects" : ["One", "Two", "Three"]
}
Code:
final String json = "{\"objects\" : [\"One\", \"Two\", \"Three\"]}";
final JsonNode arrNode = new ObjectMapper().readTree(json).get("objects");
if (arrNode.isArray()) {
for (final JsonNode objNode : arrNode) {
System.o...