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What is the difference between Python and IPython?
...t like the normal python shell does, only with more features.
I recommend reading the IPython tutorial to get a sense of what features you gain when using IPython.
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Adding two numbers concatenates them instead of calculating the sum
...d as a string, and the + will therefore concatenate rather than add.
When reading supposedly numeric data from a form, you should always push it through parseInt() or parseFloat(), depending on whether you want an integer or a decimal.
Note that neither function truly converts a string to a number...
Laravel Eloquent ORM Transactions
..., while related to Eloquent transactions, was exactly changing this.
After reading THIS stackoverflow answer, I realized my database tables were using MyISAM instead of InnoDB.
For transactions to work on Laravel (or anywhere else as it seems), it is required that your tables are set to use InnoDB
W...
How do I save a String to a text file using Java?
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Just a minor correction, the second fragment should read: FileUtils.writeStringToFile(new File("test.txt"), "Hello File");
– pm_labs
Feb 9 '12 at 0:31
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how to stop Javascript forEach? [duplicate]
... We need to be criticized about our code to make it better. I would rather read other implementation and help them improve it than reinvent the wheel.
– Ali
Mar 29 '16 at 19:35
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Best data type for storing currency values in a MySQL database
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I've read that performance is typically faster with INT than DECIMAL, even in the latest versions of MySQL. It's also easier when you need to bring these values into PHP or something and compare values.
– Dan...
For every character in string
...racters of a std::string, using a range-based for loop (it's from C++11, already supported in recent releases of GCC, clang, and the VC11 beta):
std::string str = ???;
for(char& c : str) {
do_things_with(c);
}
Looping through the characters of a std::string with iterators:
std::string str...
Find and Replace text in the entire table using a MySQL query
...ements and instead of using slashes as my delimiters I used pipes instead (read this up grymoire.com/Unix/Sed.html). Example: sed -i 's|olddomain.com|http://newdomain.com|g' ./db.sql
– Mike Kormendy
Feb 9 '15 at 4:49
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Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f
...le? I had changed my JAVA_HOME variable and this popped up. I just removed/readded the JRE library.
– user2124871
Sep 23 '16 at 15:15
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How do you debug a regex? [closed]
...can become quite complex. The lack of white space makes them difficult to read. I can't step though a regular expression with a debugger. So how do experts debug complex regular expressions?
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