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- Concatenating two lists - difference between += and extend()
ary extend (ext) merely adds reference to "ext" list to the end of the "ary" list, resulting in less memory transactions As a result, extend works orders of magnitude faster and doesn't use any additional memory outside of the list being extended and the list it's being extended with
- Python extend for a dictionary - Stack Overflow
Python "extend" for a dictionary Asked 16 years, 4 months ago Modified 2 years, 6 months ago Viewed 545k times
- How does the extend() function work in jQuery? - Stack Overflow
I saw this in a plugin: var options = $ extend(defaults, options); How does it work? What does extend() do?
- What is the difference between Pythons list methods append and extend . . .
Append has (amortized) constant time complexity, O (1) Extend has time complexity, O (k) Iterating through the multiple calls to append() adds to the complexity, making it equivalent to that of extend, and since extend's iteration is implemented in C, it will always be faster if you intend to append successive items from an iterable onto a list
- python - Append vs extend efficiency - Stack Overflow
As we can see, extend with list comprehension is still over two times faster than appending Generator expressions appear noticeably slower than list comprehension append_comp only introduces unnecessary list creation overhead
- How to extend an existing JavaScript array with another array, without . . .
There doesn't seem to be a way to extend an existing JavaScript array with another array, i e to emulate Python's extend method I want to achieve the following:
- Use of add(), append(), update() and extend() in Python
Is there an article or forum discussion or something somewhere that explains why lists use append extend, but sets and dicts use add update? I frequently find myself converting lists into sets and
- JavaScript equivalent of jQuerys extend method - Stack Overflow
In order to prevent having to specify all of the settings within the config object, I use jQuery's extend method to fill in a new object, settings with any default values from the default object if they weren't specified in the config object: var config = {key1: value1}; var default = {key1: default1, key2: default2, key 3: default 3};
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