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Responding with a JSON object in Node.js (converting object/array to JSON string)
...y:
function random(response) {
console.log("Request handler random was called.");
response.writeHead(200, {"Content-Type": "application/json"});
var otherArray = ["item1", "item2"];
var otherObject = { item1: "item1val", item2: "item2val" };
var json = JSON.stringify({
anObject: othe...
How does one use rescue in Ruby without the begin and end block
... Inline rescue is not a good practice as it rescues StandardError and all its subclasses, like NameError – meaning that even a typo in your code won't raise an error.. See thoughtbot.com/blog/don-t-inline-rescue-in-ruby.
– BrunoFacca
Sep 19 '19 at 18:25
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Rails: How to list database tables/objects using the Rails console?
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To get a list of all model classes, you can use ActiveRecord::Base.subclasses e.g.
ActiveRecord::Base.subclasses.map { |cl| cl.name }
ActiveRecord::Base.subclasses.find { |cl| cl.name == "Foo" }
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Stop handler.postDelayed()
I call multiple Handlers by new Handler().postDelayed(new Runnable().....
How can I stop it when I click on back?
4 Answer...
How to add item to the beginning of List?
...ssible to insert at the end of the list?
– Gary Henshall
Dec 11 '17 at 14:36
3
@GaryHenshall yes,...
is there an easy way to get the http status code in the failure block from AFHTTPClient?
...the operations queue the operationStatusCode will be -999.
You can check all other NSError codes and their descriptions in Apple's documentation
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How do I check out a specific version of a submodule using 'git submodule'?
...answered Jun 6 '12 at 14:34
joemallerjoemaller
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To find whether a column exists in data frame or not
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all(c("d", "e", "f") %in% colnames(dat))
– skan
Jul 28 '17 at 19:59
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How to create a zip archive of a directory in Python?
...e. The documentation tells you what functions are available, but doesn't really explain how you can use them to zip an entire directory. I think it's easiest to explain with some example code:
#!/usr/bin/env python
import os
import zipfile
def zipdir(path, ziph):
# ziph is zipfile handle
f...
How is a non-breaking space represented in a JavaScript string?
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  is a HTML entity. When doing .text(), all HTML entities are decoded to their character values.
Instead of comparing using the entity, compare using the actual raw character:
var x = td.text();
if (x == '\xa0') { // Non-breakable space is char 0xa0 (160 dec)
x...