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What are the differences between JSON and JavaScript object? [duplicate]
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First you should know what JSON is:
It is language agnostic data-interchange format.
The syntax of JSON was inspired by the JavaScript Object Literal notation, but there are differences between them.
For example, in JSON all keys must be ...
Singular or plural controller and helper names in Rails
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Rails help now uses plural: rails generate controller CreditCards open debit credit close
– notapatch
Jun 27 '13 at 14:48
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Static link of shared library function in gcc
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Yeah, I know this is an 8 year-old question, but I was told that it was possible to statically link against a shared-object library and this was literally the top hit when I searched for more information about it.
To actually demonst...
What is the difference between Nexus and Maven?
...e Maven repository format. While it supports many other repository formats now, the
Maven repository format is still the most common and well supported format for build and provisioning
tools running on the JVM and beyond.
This chapter shows example configurations for using the repository manager wi...
Purpose of #!/usr/bin/python3
...e: #!/bin/bash.
Without the shebang line, the operating system does not know it's a python script, even if you set the execution flag on the script and run it like ./script.py. To make the script run by default in python3, either invoke it as python3 script.py or set the shebang line.
You can use...
Wait 5 seconds before executing next line
... work that way. You can schedule a function of code to run 5 seconds from now, but you have to put the code that you want to run later into a function and the rest of your code after that function will continue to run immediately.
For example:
function stateChange(newState) {
setTimeout(funct...
Find out how much memory is being used by an object in Python [duplicate]
...ld you go about finding out how much memory is being used by an object? I know it is possible to find out how much is used by a block of code, but not by an instantiated object (anytime during its life), which is what I want.
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Ruby send vs __send__
...th objects of any class, you need to use __send__ to be on the safe side.
Now that leaves the question, why there is send and not just __send__. If there were only __send__ the name send could be used by other classes without any confusion. The reason for that is that send existed first and only la...
What is an MvcHtmlString and when should I use it?
...ring and HtmlString? After reading the docs linked above, I still did not know what MvcHtmlString gives me that HtmlString does not.
– flipdoubt
Jan 9 '13 at 13:41
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How to merge two arrays in JavaScript and de-duplicate items
...ternet Explorer Technical Preview.
But if you use Babel, you can have it now.
const input = [
[1, 2, 3],
[101, 2, 1, 10],
[2, 1]
];
const mergeDedupe = (arr) => {
return [...new Set([].concat(...arr))];
}
console.log('output', mergeDedupe(input));
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