Karam Fouad karam084

## Ruby and Rails Interview Cheat Sheet.md

      
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                karam084
                / Ruby and Rails Interview Cheat Sheet.md
            
            
              Created
              May 31, 2023 00:10
                — forked from ahmadhasankhan/Ruby and Rails Interview Cheat Sheet.md
            
              
                This is my Ruby interview cheat sheet. Feel free to fork it, Use it, Share it, or do whatever you want with it. PLEASE let me know if there is any error or if anything crucial is missing. I will keep updating...
              
          
    Ruby and Rails Interview Questions

Ruby


What is a class?
What is an object?
What is a module? Can you tell me the difference between classes and modules?
Can you tell me the three levels of method access control for classes and modules? What do they imply about the method?
There are three ways to invoke a method in ruby. Can you give me at least two?
Explain this ruby idiom: a ||= b


## eventemitter.js
/* Polyfill indexOf. */
var indexOf;

if (typeof Array.prototype.indexOf === 'function') {
    indexOf = function (haystack, needle) {
        return haystack.indexOf(needle);
    };
} else {
    indexOf = function (haystack, needle) {
        var i = 0, length = haystack.length, idx = -1, found = false;

## productSchool.js
//PUT YOUR MIXPANEL TOKEN AND SECRET BELOW:
const credentials = {
    "token": "your-mixpanel-token-here",
    "secret": "your-mixpanel-secret-here"
}


/*

## FootballAnalysis.ipynb

      
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                karam084
                / FootballAnalysis.ipynb
            
            
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              May 8, 2021 20:14
            
          
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	/* Polyfill indexOf. */
	var indexOf;

	if (typeof Array.prototype.indexOf === 'function') {
	indexOf = function (haystack, needle) {
	return haystack.indexOf(needle);
	};
	} else {
	indexOf = function (haystack, needle) {
	var i = 0, length = haystack.length, idx = -1, found = false;
	//PUT YOUR MIXPANEL TOKEN AND SECRET BELOW:
	const credentials = {
	"token": "your-mixpanel-token-here",
	"secret": "your-mixpanel-secret-here"
	}




	/*