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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...xactly is the difference between querySelector and querySelectorAll against getElementsByClassName and getElementById ?
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How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
When using the Spring 3.0 capability to annotate a scheduled task, I would like to set the fixedDelay as parameter from my configuration file, instead of hard-wiring it into my task class, like currently...
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Maintain the aspect ratio of a div with CSS
I want to create a div that can change its width/height as the window's width changes.
27 Answers
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Get difference between 2 dates in JavaScript? [duplicate]
How do I get the difference between 2 dates in full days (I don't want any fractions of a day)
6 Answers
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Restore file from old commit in git
I have an old commit that I did a few weeks ago. I want to restore only a single file from that commit. What do I do?
4 Ans...
How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
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When should I use Arrow functions in ECMAScript 6?
The question is directed at people who have thought about code style in the context of the upcoming ECMAScript 6 (Harmony) and who have already worked with the language.
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Is there an Eclipse line-width marker?
I have a specific project where I need to wrap every code line at 65 characters. I have set up the eclipse Java code formatter properly for this. But what I really want is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater....
How to set custom header in Volley Request
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It looks like you override public Map<String, String> getHeaders(), defined in Request, to return your desired HTTP headers.
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User recognition without cookies or local storage
I'm building an analytic tool and I can currently get the user's IP address, browser and operating system from their user agent.
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