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rmagick gem install “Can't find Magick-config”
...opard 10.6 using RVM, Ruby 1.9.2-head and Rails 3.05. Responses to similar questions recommended installing ImageMagick, which I successfully did. Other suggested installing the "libmagick9-dev library", however, I can not figure out how to do this.
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How Scalable is SQLite? [closed]
...
edit: I just realized that I may not have been fair to SQLite - I didn't index any columns in the SQLite database when I was serving it from a web page. This partially caused the slowdown I was experiencing. However, the observation of database-locking stands - if you have particularly onerous upd...
When should I use Struct vs. OpenStruct?
...
Benchmark.bm 20 do |x|
x.report 'OpenStruct slow' do
REP.times do |index|
OpenStruct.new(:name => "User", :age => 21)
end
end
x.report 'OpenStruct fast' do
REP.times do |index|
OpenStruct.new(HASH)
end
end
x.report 'Struct slow' do
REP.times do |...
How to create an alias for a command in Vim?
...ith supplementary searching, I've found that someone asked nearly the same question as I.
:command <AliasName> <string of command to be aliased>
will do the trick.
Please be aware that, as Richo points out, the user command must begin with a capital letter.
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Should one use < or
...ember when I first started learning Java. I hated the concept of a 0-based index because I've always used 1-based indexes. So I would always use the <= 6 variant (as shown in the question). To my own detriment, because it would confuse me more eventually on when the for loop actually exited. It's...
Delete element in a slice
...
Where a is the slice, and i is the index of the element you want to delete:
a = append(a[:i], a[i+1:]...)
... is syntax for variadic arguments in Go.
Basically, when defining a function it puts all the arguments that you pass into one slice of that type. B...
How to jump to a particular line in a huge text file?
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+1: Also, if the file doesn't change, the line number index can be pickled and reused, further amortizing the initial cost of scanning the file.
– S.Lott
Mar 6 '09 at 21:48
...
Setting dynamic scope variables in AngularJs - scope.
...read given answers, the following worked for me:
HTML:
<div id="div{{$index+1}}" data-ng-show="val{{$index}}">
Where $index is the loop index.
Javascript (where value is the passed parameter to the function and it will be the value of $index, current loop index):
var variable = "val"+val...
What is “export default” in javascript?
...strate this line with a simple example.
Lets say we have 3 modules and an index.html:
modul.js
modul2.js
modul3.js
index.html
modul.js
export function hello() {
console.log("Modul: Saying hello!");
}
export let variable = 123;
modul2.js
export function hello2() {
console.log("Modul...
ASP.NET Identity - HttpContext has no extension method for GetOwinContext
...ed) - also, the fact people are upvoting both this answer and the original Q also goes to indicate that I wasn't the only one with this issue.
– Darren Wainwright
Mar 27 '14 at 12:54
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