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How do you divide each element in a list by an int?

...to see what is the fastest way for a large number. So, I found that we can convert the int to an array and it can give the correct results and it is faster. arrayint=np.array(myInt) newList = myList / arrayint This a comparison of all answers above import numpy as np import time import random m...
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How do you reindex an array in PHP?

...like Gumbo posted. However, to answer your question, this function should convert any array into a 1-based version function convertToOneBased( $arr ) { return array_combine( range( 1, count( $arr ) ), array_values( $arr ) ); } EDIT Here's a more reusable/flexible function, should you desire...
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Python division

...hat always pops in my head when I am doing arithmetic operations (should I convert to float and which number), an example from that aspect is presented: >>> a = 1/2/3/4/5/4/3 >>> a 0 When we divide integers, not surprisingly it gets lower rounded. >>> a = 1/2/3/4/5/4/f...
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How to hash some string with sha256 in Java?

... SHA-256 isn't an "encoding" - it's a one-way hash. You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, yo...
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How to loop through a HashMap in JSP?

...lt;%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <select name="country"> <c:forEach items="${countries}" var="country"> <option value="${country.key}">${country.value}</option> </c:forEach> </select> You need a Servlet or a S...
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What is a NullReferenceException, and how do I fix it?

... to find out where the reference is or isn't set, right-click its name and select "Find All References". You can then place a breakpoint at every found location and run your program with the debugger attached. Every time the debugger breaks on such a breakpoint, you need to determine whether you exp...
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Call static method with reflection

... .Where(x => x.Namespace.ToUpper().Contains("MACRO")) .Select(t => (Action)Delegate.CreateDelegate( typeof(Action), null, t.GetMethod("Run", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public))) ...
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how to change any data type into a string in python

...error like ordinal not in range(128). This was the case for me while I was converting list of string in language other than English I resolved it by using unicode(object) share | improve this answe...
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What method in the String class returns only the first N characters?

... that the LINQ version returns a IEnumerable<char>, so you'd have to convert the IEnumerable<char> to string: new string(s.Take(n).ToArray()). share | improve this answer | ...
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What are the dark corners of Vim your mom never told you about? [closed]

.... viwy or viwc. Yank or change current word. Hit w multiple times to keep selecting each subsequent word, use b to move backwards vi{ - select all text in figure brackets. va{ - select all text including {}s vi(p - highlight everything inside the ()s and replace with the pasted text b and e move...