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SQL: How to perform string does not equal
...here tester <> 'username' or tester is null
If you are looking for strings that do not contain the word "username" as a substring, then like can be used:
where tester not like '%username%'
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Why does parseInt(1/0, 19) return 18?
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The result of 1/0 is Infinity.
parseInt treats its first argument as a string which means first of all Infinity.toString() is called, producing the string "Infinity". So it works the same as if you asked it to convert "Infinity" in base 19 to decimal.
Here are the digits in base 19 along with t...
Is there an eval() function in Java? [duplicate]
I have a string like the following:
12 Answers
12
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Android get free size of internal/external memory
... android.os.Environment.MEDIA_MOUNTED);
}
public static String getAvailableInternalMemorySize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSizeLong();
long availableBlocks = ...
Python, remove all non-alphabet chars from string
...I have found this post Stripping everything but alphanumeric chars from a string in Python which shows a nice solution using regex, but I am not sure how to implement it
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jQuery form serialize - empty string
....serialize() takes the name and the value of the form fields and creates a string like name1=value1&name2=value2. Without a name it cannot create such a string.
Note that name is something different than id. Your form also would have not worked if you used it in the "normal" way. Every form fie...
How do I validate a date string format in python?
I have a python method which accepts a date input as a string .
5 Answers
5
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Pandas percentage of total with groupby
... doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...).
– dhardy
Feb 6 '15 at 9:42
6
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Java regex capturing groups indexes
...oup numbers are used in back-reference \n in pattern and $n in replacement string.
In other regex flavors (PCRE, Perl), they can also be used in sub-routine calls.
You can access the text matched by certain group with Matcher.group(int group). The group numbers can be identified with the rule stat...
Difference between method and function in Scala
...nd co-variant on the result.
That variance means that a Function1[Seq[T], String] is a subtype of Function1[List[T], AnyRef]. Being a subtype means it can be used in place of it. One can easily see that if I'm going to call f(List(1, 2, 3)) and expect an AnyRef back, either of the two types above w...