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How do I count the number of occurrences of a char in a String?
... Cnt Score Error Units
1. countMatches avgt 5 0.010 ± 0.001 us/op
2. countOccurrencesOf avgt 5 0.010 ± 0.001 us/op
3. stringTokenizer avgt 5 0.028 ± 0.002 us/op
4. java8_1 avgt 5 0.077 ± 0.005 us/op
5. java8_2 avgt 5 0.078 ± ...
Why is string concatenation faster than array join?
... users are on a fast browser and either option you choose will gain them 0.001s, but 10% of your users will gain 2s if you choose to penalize the other users out of that 0.001s... the decision is clear. if you can't see it, i am sorry for whoever you code for.
– gcb
...
Is it possible dynamically to add String to String.xml in Android?
...wered Oct 10 '17 at 19:11
msbodw001msbodw001
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Pandas - How to flatten a hierarchical index in columns
...Note: we must strip the whitespace for when there is no second index.
In [11]: [' '.join(col).strip() for col in df.columns.values]
Out[11]:
['USAF',
'WBAN',
'day',
'month',
's_CD sum',
's_CL sum',
's_CNT sum',
's_PC sum',
'tempf amax',
'tempf amin',
'year']
...
How to round to 2 decimals with Python?
...behavior:
>>> round(1.0005,3)
1.0
>>> round(2.0005,3)
2.001
>>> round(3.0005,3)
3.001
>>> round(4.0005,3)
4.0
>>> round(1.005,2)
1.0
>>> round(5.005,2)
5.0
>>> round(6.005,2)
6.0
>>> round(7.005,2)
7.0
>>> round(3.005,...
How do I get the value of text input field using JavaScript?
... |
edited Dec 16 '19 at 11:48
a_horse_with_no_name
399k6969 gold badges611611 silver badges695695 bronze badges
...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
... malhalmalhal
15.7k55 gold badges8686 silver badges100100 bronze badges
2
...
What is the difference between a port and a socket?
... 54.252.94.236:80 SYN_SENT
TCP 192.168.1.3:63242 207.38.110.62:80 SYN_SENT
TCP 192.168.1.3:63243 207.38.110.62:80 SYN_SENT
TCP 192.168.1.3:64161 65.54.225.168:443 ESTABLISHED
Since a socket is the endpoint of a connection, there are two socke...
In Bash, how can I check if a string begins with some value?
I would like to check if a string begins with "node" e.g. "node001". Something like
13 Answers
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Create JSON object dynamically via JavaScript (Without concate strings)
...
JavaScript
var myObj = {
id: "c001",
name: "Hello Test"
}
Result(JSON)
{
"id": "c001",
"name": "Hello Test"
}
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