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PhpStorm wrap/surround selection?
...y and takes some learning curve.
It's very common behaviour that select a word and type single quote (or double quote) to surround it.
Hello World
'Hello World'
"Hello World"
To enable this, tick on checkbox of Preferences -> IDE -> Editor -> Smart Keys -> Surround Selection on typin...
What would cause an algorithm to have O(log n) complexity?
...most 1, we get
n / 2i ≤ 1
n ≤ 2i
log2 n ≤ i
In other words, if we pick an integer i such that i ≥ log2 n, then after dividing n in half i times we'll have a value that is at most 1. The smallest i for which this is guaranteed is roughly log2 n, so if we have an algorithm tha...
Does Python have a string 'contains' substring method?
... with find, index, and in though, as they are substring searches. In other words, this:
s = "This be a string"
if s.find("is") == -1:
print("No 'is' here!")
else:
print("Found 'is' in the string.")
It would print Found 'is' in the string. Similarly, if "is" in s: would evaluate to True. T...
What are the First and Second Level caches in Hibernate?
Can anyone explain in simple words what First and Second Level caching in Hibernate are?
7 Answers
...
What's the difference between 'git merge' and 'git rebase'?
...isn't language or whether the user is a computer scientist or not. While rewording it in another way helps clarify the ends (ie. what happens), it fails at explaining the means (how it happens). Git requires understanding the means in order to understand the ends. It is precisely understanding the ...
What are naming conventions for MongoDB?
...ch indicates that the key is meant to be an internal/private key. In other words, the _id is not intended to ever be edited or presented to anyone viewing the data of a collection.
– Beau Smith
Mar 2 '18 at 22:54
...
uint8_t vs unsigned char
... clear that one shouldn't expect a character at every position -- in other words that each element of the string/array is an arbitrary integer that one shouldn't make any semantic assumptions about. Of course all C programmers know this, but it may push beginners to ask the right questions.
...
Force TextBlock to wrap in WPF ListBox
... the right of the avatar. The layout is fine until the message text should word wrap, but instead I get a horizontal scroll bar on the listbox.
...
php Replacing multiple spaces with a single space [duplicate]
...nce:
\d, \w and \s
Shorthand character classes matching
digits, word characters (letters,
digits, and underscores), and
whitespace (spaces, tabs, and line
breaks). Can be used inside and
outside character classes.
...
Python - Count elements in list [duplicate]
...gt;>> mylist = [1,2,3] #list
>>> len(mylist)
3
>>> word = 'hello' # string
>>> len(word)
5
>>> vals = {'a':1,'b':2} #dictionary
>>> len(vals)
2
>>> tup = (4,5,6) # tuple
>>> len(tup)
3
To learn Python you can use byte of python...