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Getting the first character of a string with $str[0]
... sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right – in all respects – to use this notation?
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What is the difference between t.belongs_to and t.references in rails?
...ferences and t.belongs_to ?
Why are we having those two different words? It seems to me they do the same thing?
Tried some Google search, but find no explanation.
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How to create and write to a txt file using VBA
...added or modified based on the inputs. Since most of the contents are repetitive in that file, only the hex values are changing, I want to make it a tool generated file.
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How do you write a migration to rename an ActiveRecord model and its table in Rails?
... my Rails app. Is there any way to use a migration to rename a model and its corresponding table?
5 Answers
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How to get GET (query string) variables in Express.js on Node.js?
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In Express it's already done for you and you can simply use req.query for that:
var id = req.query.id; // $_GET["id"]
Otherwise, in NodeJS, you can access req.url and the builtin url module to url.parse it manually:
var url = require('...
Replace whole line containing a string using Sed
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edited Nov 30 '18 at 0:25
answered Jun 28 '12 at 13:15
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How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
I'm using Spring MVC for a simple JSON API, with @ResponseBody based approach like the following. (I already have a service layer producing JSON directly.)
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Reading my own Jar's Manifest
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You can do one of two things:
Call getResources() and iterate through the returned collection of URLs, reading them as manifests until you find yours:
Enumeration<URL> resources = getClass().getClassLoader()
.getResources("META-INF/MANIFEST.MF");
while (resources.hasMor...
convert_tz returns null
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edited Sep 16 at 14:17
answered Jan 22 '13 at 8:37
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Is there any way I can define a variable in LaTeX?
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edited Jan 13 at 16:20
Werner
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