. append (), prepend (), . after () and . before () - Stack Overflow prepend(): Insert content, specified by the parameter, to the beginning of each element in the set of matched elements before(): Insert content, specified by the parameter, before each element in the set of matched elements So, append and prepend refers to child of the object whereas after and before refers to sibling of the the object
Difference between prepend () and prependTo () - Stack Overflow With prepend(), the selector expression preceding the method is the container into which the content is inserted With prependTo() , on the other hand, the content precedes the method, either as a selector expression or as markup created on the fly, and it is inserted into the target container
bash - Unix: How can I prepend output to a file? - Stack Overflow So, file txt is our 'bottom' text file Now prepend into a new 'output' file echo "add new first line" | cat - file txt > output txt # <--- Just this command Now, output has the contents the way we want If you need your old name: mv output txt file txt cat file txt
Unix command to prepend text to a file - Stack Overflow To prepend directly to the first line (as with sed, this won't work if the input file is completely empty (0 bytes)): ed -s text txt <<EOF 1 s ^ to be prepended w EOF -s suppressed ed 's status messages
JavaScript append and prepend vs jQuery append and prepend jQuery prepend can be applied to a jQuery object that is a collection of HTML elements but JavaScript prepend can be applied to a single element Performance measurement The test is done to prepend things to 500 divs JavaScript - prepend with HTML element document querySelectorAll('div') forEach(x=> x prepend(document createElement('span
linux - Prepend text in file - Stack Overflow Different ways to prepend a line: (echo 'line to prepend';cat file)|sponge file sed -i '1iline to prepend' file # GNU sed -i '' $'1i\\\nline to prepend\n' file # BSD printf %s\\n 0a 'line to prepend' w|ed -s file perl -pi -e 'print"line to prepend\n"if$ ==1' file
c++ - Prepend std::string - Stack Overflow Then you can both prepend and append data without reallocation and moving data, if the buffer is large enough that is Copying from source to destination is still, obviously, required though If you have a buffer in which you know you will prepend data more often than you append a good alternative is to store the string backwards, and reversing
How do I prepend to a short python list? - Stack Overflow Don't prepend to lists Lists were meant to be appended to, not prepended to If you have a situation where this kind of prepending is a hurting the performace of your code, either switch to a deque or, if you can reverse your semantics and accomplish the same goal, reverse your list and append instead