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How to replace all occurrences of a string?

...n(replacement) This used to be faster in some cases than using replaceAll and a regular expression, but that doesn't seem to be the case anymore in modern browsers. Benchmark: https://jsperf.com/replace-all-vs-split-join Conclusion: If you have a performance critical use case (e.g processing hundre...
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T-SQL get SELECTed value of stored procedure

... there are three ways you can use: the RETURN value, and OUTPUT parameter and a result set ALSO, watch out if you use the pattern: SELECT @Variable=column FROM table ... if there are multiple rows returned from the query, your @Variable will only contain the value from the l...
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Role/Purpose of ContextLoaderListener in Spring?

... Your understanding is correct. The ApplicationContext is where your Spring beans live. The purpose of the ContextLoaderListener is two-fold: to tie the lifecycle of the ApplicationContext to the lifecycle of the ServletContext and to...
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How do I calculate square root in Python?

...ve to write: sqrt = x**(1/2.0), otherwise an integer division is performed and the expression 1/2 returns 0. This behavior is "normal" in Python 2.x, whereas in Python 3.x 1/2 evaluates to 0.5. If you want your Python 2.x code to behave like 3.x w.r.t. division write from __future__ import division...
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Can I access a form in the controller?

...veChanges" method is exposed in line 3 of the javascript or am I misunderstanding? – slopapa Dec 8 '14 at 23:32 3 ...
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How do I get java logging output to appear on a single line?

...ormat from a system property, so adding something like this to the JVM command line will cause it to print on one line: -Djava.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS %4$s %2$s %5$s%6$s%n' Alternatively, you can also add this to your logger.properties: java.util....
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

... 443; } The code is compatible with IIS. From the PHP.net documentation and user comments : 1) Set to a non-empty value if the script was queried through the HTTPS protocol. 2) Note that when using ISAPI with IIS, the value will be "off" if the request was not made through the HTTPS prot...
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How to read a local text file?

...le text file reader by creating a function that takes in the file’s path and converts each line of text into a char array, but it’s not working. ...
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Determine the data types of a data frame's columns

I'm using R and have loaded data into a dataframe using read.csv() . How do I determine the data type of each column in the data frame? ...
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JSP tricks to make templating easier?

...y new to Java. JSP files seem to make it easy to work with common includes and variables, much like PHP , but I'd like to know a simple way to get something like template inheritance ( Django style) or at least be able to have a base.jsp file containing the header and the footer, so I can insert c...