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Loop inside React JSX
...hink of it like you're just calling JavaScript functions. You can't use a for loop where the arguments to a function call would go:
return tbody(
for (var i = 0; i < numrows; i++) {
ObjectRow()
}
)
See how the function tbody is being passed a for loop as an argument – leadin...
What is Domain Driven Design (DDD)? [closed]
.... Even DDD advocates will frequently point out that DDD is only intended for large (>6 month) projects.
Assuming that you're still reading at this point, my take on DDD is this:
DDD is about trying to make your software a model of a real-world system or process. In using DDD, you are meant to...
Control cannot fall through from one case label
...e. But I am getting a "Control cannot fall through from one case label" error.
8 Answers
...
Send POST Request with Data Specified in File via Curl
I need to make a POST request via Curl from the command line. Data for this request is located in a file. I know that via PUT this could be done with the --upload-file option.
...
Linux find file names with given string
I'm on Ubuntu, and I'd like to find all files in the current directory and subdirectories whose name contains the string "John". I know that grep can match the content in the files, but I have no idea how to use it with file names. Any help would be appreciated.
...
How do I print out the contents of an object in Rails for easy debugging?
...n't give me what I want, I'll switch to .to_yaml.
class User
attr_accessor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=30>
puts user.to_yaml
#=> --- !ruby/object:User
#=> age: 30
#=> nam...
How to use Python's pip to download and keep the zipped files for a package?
...
Note that pip download also supports -r requirements.txt so you can easily download them all from an internet-connected machine then copy to an offline machine and install how the above commenters mentioned
– Hawkins
A...
PHP session lost after redirect
...t, carry out these usual checks:
Make sure session_start(); is called before any sessions are being called. So a safe bet would be to put it at the beginning of your page, immediately after the opening <?php declaration before anything else. Also ensure there are no whitespaces/tabs before the ...
In Python, how do I indicate I'm overriding a method?
In Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code.
...
How to iterate over the keys and values in an object in CoffeeScript?
...
Use for x,y of L. Relevant documentation.
ages = {}
ages["jim"] = 12
ages["john"] = 7
for k,v of ages
console.log k + " is " + v
Outputs
jim is 12
john is 7
You may also want to consider the variant for own k,v of ages as...