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Replace non-numeric with empty string
Quick add on requirement in our project. A field in our DB to hold a phone number is set to only allow 10 characters. So, if I get passed "(913)-444-5555" or anything else, is there a quick way to run a string through some kind of special replace function that I can pass it a set of characters to ...
String formatting: % vs. .format vs. string literal
Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
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Why should the copy constructor accept its parameter by reference in C++?
Why must a copy constructor's parameter be passed by reference?
8 Answers
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Does a `+` in a URL scheme/host/path represent a space?
I am aware that a + in the query string of a URL represents a space. Is this also the case outside of the query string region? That is to say, does the following URL:
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How to view the assembly behind the code using Visual C++?
I was reading another question pertaining the efficiency of two lines of code, and the OP said that he looked at the assembly behind the code and both lines were identical in assembly. Digression aside, how could I view the assembly code created when a program is compiled.
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git - Server host key not cached
I try to push changes from my local repo to a remote repo. When I type:
20 Answers
20
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SQL join: selecting the last records in a one-to-many relationship
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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How do you pass multiple enum values in C#?
Sometimes when reading others' C# code I see a method that will accept multiple enum values in a single parameter. I always thought it was kind of neat, but never looked into it.
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Converting integer to string in Python
I want to convert an integer to a string in Python. I am typecasting it in vain:
12 Answers
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