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Traverse all the Nodes of a JSON Object Tree with JavaScript
... foo:"bar",
arr:[1,2,3],
subo: {
foo2:"bar2"
}
};
//called with every property and its value
function process(key,value) {
console.log(key + " : "+value);
}
function traverse(o,func) {
for (var i in o) {
func.apply(this,[i,o[i]]);
if (o[i] !== null &a...
Execute and get the output of a shell command in node.js
...ng the output, without falling into a callback hell and with a pretty neat API. Using the await keyword, you can create a script that reads easily, while still be able to get the work of child_process.exec done.
Code sample
const childProcess = require("child_process");
/**
* @param {string} com...
Ruby on Rails Server options [closed]
..., Mongrel, Passenger, Apache, Nginx and many more I am sure, and I don't really understand the different roles they play.
1...
how to get the one entry from hashmap without iterating
...ext();
(Note: Checking for an empty map omitted).
Your code doesn't get all the entries in the map, it returns immediately (and breaks out of the loop) with the first entry that's found.
To print the key and value of this first element:
System.out.println("Key: "+entry.getKey()+", Value: "+entr...
Preferred method to store PHP arrays (json_encode vs serialize)
...ciative array of data in a flat file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
...
What is the purpose of std::make_pair vs the constructor of std::pair?
...
Actually, the types should be deduced at compile time without the need to specify.
– Chad
Feb 14 '12 at 1:51
...
Python dictionary from an object's fields
...a dictionary from an arbitrary object, it's sufficient to use __dict__. Usually, you'll declare your methods at class level and your attributes at instance level, so __dict__ should be fine. For example:
>>> class A(object):
... def __init__(self):
... self.b = 1
... self.c = 2
....
jQuery send string as POST parameters
...d out how to send $.post data as a string. the accepted answer does not at all help me with that. thank you.
– chiliNUT
Jun 27 '14 at 23:11
...
Django 1.7 - makemigrations not detecting changes
... may happen due to the following reasons:
You did not add the app in INSTALLED_APPS list in settings.py
(You have to add either the app name or the dotted path to the subclass of AppConfig in apps.py in the app folder, depending on the version of django you are using). Refer documentation: INST...
Most common C# bitwise operations on enums
...nfuse the issue. The .NET Enumeration Type Naming Guidelines indicate that all [Flags] enums should have pluralised names, so the name FlagsEnum has even more serious issues than ugliness.
– Drew Noakes
Jan 16 '13 at 11:48
...