PHP, JS, CSS, Python, and Machine Learning Technology
PHP, JS, CSS, Python, and Machine Learning Technology
What is the difference between encryption and hashing
The TLDR answer is that encryption is two way and hashing is only one way.
Both are ...
PHP, JS, CSS, Python, and Machine Learning Technology
What is the Event Propagation?
Event delegation makes use of two features of JavaScript events: event bubbling and the ...
PHP, JS, CSS, Python, and Machine Learning Technology
Const-var-let
var is function scoped and if you try to use a variable declared with var before the ...
PHP, JS, CSS, Python, and Machine Learning Technology
Coercion
We know becaue of js data-types rules, Strings act like strings and numbers like numbers. ...
PHP, JS, CSS, Python, and Machine Learning Technology
Call stack is a collection of execution contexts.
When code is run in JavaScript, the environment in which it is executed is very ...
PHP, JS, CSS, Python, and Machine Learning Technology
Mutability
One of the key differentiating attributes between primitive data types and compound data ...
PHP, JS, CSS, Python, and Machine Learning Technology
Closures
A closure is the combination of a function bundled together (enclosed) with references to ...
PHP, JS, CSS, Python, and Machine Learning Technology
What is typeof(NaN) ?
First, NaN is not a keyword (unlike true, false, null, etc..), it is a property of the ...
PHP, JS, CSS, Python, and Machine Learning Technology
Object.prototype
When you try to access a property on the new object, it checks the object’s own ...
PHP, JS, CSS, Python, and Machine Learning Technology
OOP-Encapsulation-Theory-GOOD-Explanations-Private-Methods
An object can store data in one of two ways: as a property or as a variable. The method ...
PHP, JS, CSS, Python, and Machine Learning Technology
The prototype of a subclass is the superclass
this refers to the object currently within the scope of the Person function. It sets it’s ...
PHP, JS, CSS, Python, and Machine Learning Technology
Class Inheritance
Instances inherit from classes (like a blueprint — a description of the class), and ...
PHP, JS, CSS, Python, and Machine Learning Technology
Class Inheritance
Instances inherit from classes (like a blueprint — a description of the class), and ...
PHP, JS, CSS, Python, and Machine Learning Technology
functional-programming-pure-function
As a side note - Redux need reducers to be “pure functions
Basic example of mutations
...
PHP, JS, CSS, Python, and Machine Learning Technology
What, exactly, is the DOM?
The Document Object Model, or the “DOM”, is an interface to web pages. It is essentially ...
PHP, JS, CSS, Python, and Machine Learning Technology
What does a DOCTYPE do?
DOCTYPE is an abbreviation for DOCument TYPE. A DOCTYPE is always associated to a DTD - ...
PHP, JS, CSS, Python, and Machine Learning Technology
What’s the difference between git fetch and git pull?
One of the feature git, has enabled us to record all changes by the commit. And saved it ...
PHP, JS, CSS, Python, and Machine Learning Technology
Code Executed by setTimeout()
Code executed by setTimeout() is called from an execution context separate from the ...
