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Regex - Should hyphens be escaped? [duplicate]
Hyphen is a special character in regex, for instance, to select a range, I could do something like:
3 Answers
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How do I add 1 day to an NSDate?
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Much better solution than the selected answer
– Justin Meiners
Jul 9 '12 at 16:54
19
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What is Virtual DOM?
...nd what react does it look for the the reference in its object model tree, select the real node in the html and tinker with it. The sound is great virtual dom, but it's nothing fancy and overhype.
– syarul
Feb 15 '17 at 1:07
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Optimise PostgreSQL for fast testing
... table, manipulating it however you need to, then doing an INSERT INTO ... SELECT ... to copy it to the final table. Note that temporary tables are per-session; if your session ends or you lose your connection then the temp table goes away, and no other connection can see the contents of a session's...
How to print a groupby object
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for key, values in gb.iteritems():
print(df.ix[values], "\n\n")
For selective key grouping: Insert the keys you want inside the key_list_from_gb, in following, using gb.keys(): For Example,
gb = grouped_df.groups
gb.keys()
key_list_from_gb = [key1, key2, key3]
for key, values in gb.items()...
Get element type with jQuery
...e type of an element with jQuery? For example, is the element a div, span, select, or input?
7 Answers
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Evil Mode best practice? [closed]
...uits
(defun minibuffer-keyboard-quit ()
"Abort recursive edit.
In Delete Selection mode, if the mark is active, just deactivate it;
then it takes a second \\[keyboard-quit] to abort the minibuffer."
(interactive)
(if (and delete-selection-mode transient-mark-mode mark-active)
(setq deact...
Reordering arrays
...@CMS. If I swap mean's don't want to replace the order...For Example, If I select the 3rd object to 1 st position I want to swap 1 as a 2 and 2 as a 3 as 1
– Peri
Aug 2 '18 at 6:41
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Opening port 80 EC2 Amazon web services [closed]
...up when I had similar issue.
Go to Security Groups tab, go to Inbound tab, select HTTP in Create a new rule combo-box, leave 0.0.0.0/0 in source field and click Add Rule, then Apply rule changes.
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Converting strings to floats in a DataFrame
...hole dataframe or just individual columns. It also gives you an ability to select how to treat stuff that can't be converted to numeric values:
import pandas as pd
s = pd.Series(['1.0', '2', -3])
pd.to_numeric(s)
s = pd.Series(['apple', '1.0', '2', -3])
pd.to_numeric(s, errors='ignore')
pd.to_numer...