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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
I am a beginner to Ruby on Rails and I am using Rails 3.0.9.
3 Answers
3
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Is there a recommended way to return an image using ASP.NET Web API
What is the best way to return an image with 2 parameters (x and y for resize).
2 Answers
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Pandoc markdown page break
Recently I started using Pandoc markdown which seems a good alternative to LaTeX, as my document does not have many mathematical formulas, and I do not have ANY experience with LaTeX, which combined with less than 2 week submission deadline makes it a good solution.
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Clearing all cookies with JavaScript
... with HttpOnly flag set, as the HttpOnly flag disables Javascript's access to the cookie.
It will not delete cookies that have been set with a Path value. (This is despite the fact that those cookies will appear in document.cookie, but you can't delete it without specifying the same Path value with ...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
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[root@localhost mongodb]# ./bin/mongoexport --help
Export MongoDB data to CSV, TSV or JSON files.
options:
--help produce help message
-v [ --verbose ] be more verbose (include multiple times for more
verbosity e.g. -vvvvv)
--v...
How to get the HTML for a DOM element in javascript
...target.cloneNode(true));
alert(wrap.innerHTML);
I am cloning the element to avoid having to remove and reinsert the element in the actual document. This might be expensive if the element you wish to print has a very large tree below it, though.
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CSS margin terror; Margin adds space outside parent element [duplicate]
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
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javascript: pause setTimeout();
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You could wrap window.setTimeout like this, which I think is similar to what you were suggesting in the question:
var Timer = function(callback, delay) {
var timerId, start, remaining = delay;
this.pause = function() {
window.clearTimeout(timerId);
remaining -= Date.n...
Markdown vs markup - are they related?
I'm using markdown to edit this question right now. In some wikis I used wiki markup. Are they the same thing? Are they related? Please explain. If I want to implement one or the other in a web project (like stackoverflow) what do I need to use?
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Mod of negative number is melting my brain
I'm trying to mod an integer to get an array position so that it will loop round. Doing i %
arrayLength works fine for positive numbers but for negative numbers it all goes wrong.
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