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How to convert an integer to a string in any base?
Python allows easy creation of an integer from a string of a given base via
27 Answers
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npm windows install globally results in npm ERR! extraneous
I am new to grunt and npm. So I am trying some "cookbook-example" on the site ' http://tech.pro/tutorial/1190/package-managers-an-introductory-guide-for-the-uninitiated-front-end-developer#front_end_developers '.
You should not have to look there now, but I thought it could be good to share the site...
CSV new-line character seen in unquoted field error
the following code worked until today when I imported from a Windows machine and got this error:
9 Answers
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ANTLR: Is there a simple example?
I'd like to get started with ANTLR, but after spending a few hours reviewing the examples at the antlr.org site, I still can't get a clear understanding of the grammar to Java process.
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error: No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml
When I followed the instructions to add an ad into my app by xml, I got the following errors:
25 Answers
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What does the (unary) * operator do in this Ruby code?
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The * is the splat operator.
It expands an Array into a list of arguments, in this case a list of arguments to the Hash.[] method. (To be more precise, it expands any object that responds to to_ary/to_a, or to_a in Ruby 1.9.)
To illustrate, the following two statements are...
How to set a default value for a datetime column to record creation time in a migration?
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This is supported now in Rails 5.
Here is a sample migration:
class CreatePosts < ActiveRecord::Migration[5.0]
def change
create_table :posts do |t|
t.datetime :modified_at, default: -> { 'CURRENT_TIMESTAMP' }
t.timestam...
Call a function from another file?
Set_up: I have a .py file for each function I need to use in a program.
17 Answers
17
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Iterating through a list in reverse order in java
I'm migrating a piece of code to make use of generics. One argument for doing so is that the for loop is much cleaner than keeping track of indexes, or using an explicit iterator.
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How do I set up a simple delegate to communicate between two view controllers?
... and need to pass the value from the child view controller to the parent using a delegate. I know what delegates are and just wanted to see a simple to follow example.
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