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What is the difference between Spring, Struts, Hibernate, JavaServer Faces, Tapestry?
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Spring is an IoC container (at least the core of Spring) and is used to wire things using dependency injection. Spring provides additional services like transaction management and seamless integration of various other technologies.
Struts is an action-based presentation framework (...
jQuery check if an input is type checkbox?
I'd like to find out if an input is a checkbox or not, and the following doesn't work:
6 Answers
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Bootstrap 3 offset on right not left
...t a narrow column of content on the right I might use an offset class of 9 and a column of 3.
9 Answers
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Why does HTML5 form-validation allow emails without a dot?
... The client side validation should be only for giving feedback to the user and not be relied on, since it can be easily bypassed.
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What is the purpose of the HTML “no-js” class?
...lot of template engines, in the HTML5 Boilerplate , in various frameworks and in plain php sites there is the no-js class added onto the <HTML> tag.
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What does it mean to start a PHP function with an ampersand?
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An ampersand before a function name means the function will return a reference to a variable instead of the value.
Returning by reference is useful when
you want to use a function to find to
which variable a reference should b...
What are the differences between ArrayList and Vector?
What are the differences between the two data structures ArrayList and Vector , and where should you use each of them?
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Omit rows containing specific column of NA
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You could use the complete.cases function and put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data...
Creating a jQuery object from a big HTML-string
...le.net/MCSyr/2/
It parses the arbitrary HTML string into a jQuery object, and uses find to display the result in a div.
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How to elegantly rename all keys in a hash in Ruby? [duplicate]
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Just use mappings[k] || k instead of mappings[k] above and it will leave keys not in the mapping as is.
– Mladen Jablanović
Nov 9 '10 at 20:26
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