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How can I profile Python code line-by-line?
...rofile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).
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Reading file contents on the client-side in javascript in various browsers
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Edited to add information about the File API
Since I originally wrote this answer, the File API has been proposed as a standard and implemented in most browsers (as of IE 10, which added support for FileReader API described here, though not yet the File API). The API is a bit more complicated tha...
Renaming table in rails
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You would typically do this sort of thing in a migration:
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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What are commit-ish and tree-ish in Git?
What are specific examples of commit-ish and tree-ish in Git?
2 Answers
2
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What does SQL clause “GROUP BY 1” mean?
Someone sent me a SQL query where the GROUP BY clause consisted of the statement: GROUP BY 1 .
6 Answers
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Purpose of asterisk before a CSS property
The following is taken from the Yahoo CSS reset. Can someone please explain the purpose of the asterisks?
6 Answers
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How to return a file using Web API?
...etter to return HttpResponseMessage with StreamContent inside of it.
Here is example:
public HttpResponseMessage GetFile(string id)
{
if (String.IsNullOrEmpty(id))
return Request.CreateResponse(HttpStatusCode.BadRequest);
string fileName;
string localFilePath;
int fileSize...
Do rails rake tasks provide access to ActiveRecord models?
...ustom rake task, but it seems I dont have access to my models. I thought this was something implicitly included with rails task.
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How to select an option from drop down using Selenium WebDriver C#?
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You must create a select element object from the drop down list.
using OpenQA.Selenium.Support.UI;
// select the drop down list
var education = driver.FindElement(By.Name("education"));
//create select element object
var selectElement = new SelectElement(education);
//select...
Can I force pip to reinstall the current version?
...d requires reinstallation. But pip install -U won't touch a package that is already up-to-date. I see how to force a reinstallation by first uninstalling (with pip uninstall ) and then installing, but is there a way to simply force an "update" to a nominally current version in a single step?
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