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Ruby: How to iterate over a range, but in set increments?
...http://ruby-doc.org/core/classes/Range.html#M000695 for the full API.
Basically you use the step() method. For example:
(10..100).step(10) do |n|
# n = 10
# n = 20
# n = 30
# ...
end
share
|
...
Breaking loop when “warnings()” appear in R
...r handle the condition gracefully (continuing evaluation after the warning call)
withCallingHandlers({
warning("oops")
1
}, warning=function(w) {
message("handled warning: ", conditionMessage(w))
invokeRestart("muffleWarning")
})
which prints
handled warning: oops
[1] 1
...
How to create major and minor gridlines with different linestyles in Python
...
Sometimes you also need to call plt.minorticks_on() for the minor grid to actually appear. See stackoverflow.com/a/19940830/209246
– eqzx
Feb 6 '17 at 22:34
...
jQuery: Get height of hidden element in jQuery
...the same problem with getting hidden element width, so I wrote this plugin call jQuery Actual to fix it. Instead of using
$('#some-element').height();
use
$('#some-element').actual('height');
will give you the right value for hidden element or element has a hidden parent.
Full documentation please...
Pass a variable into a partial, rails 3?
...artial => 'post', :collection => @posts %>
In this case it will call the partial post for every post with a local variable 'post'
You can even render a spacer template between each post:
<%= render :partial => 'post', :collection => @posts, :spacer_template => 'post_divider'...
How to change the map center in Leaflet.js
...er location. How do I change the center of the map to a new position after calling the initialize function?
4 Answers
...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...affected and not on the Courses
follow-up question: why do you have CourseID on table Category?
Maybe you should restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT...
Percentage width child element in absolutely positioned parent on Internet Explorer 7
...of which is a relatively positioned div . When I use a percentage-based width on the child div , it collapses to 0 width on IE7, but not on Firefox or Safari.
...
GitHub: searching through older versions of files
...der versions of my repo files. For example, say, I used to have a function called get_info() in my code, but deleted it several versions ago, is it possible to search for get_info and find the code. If it is not possible using GitHub, is it possible from the git command line?
...
How to get datetime in JavaScript?
...
Semantically, you're probably looking for the one-liner
new Date().toLocaleString()
which formats the date in the locale of the user.
If you're really looking for a specific way to format dates, I recommend the moment.js library...