Renato Lins

Desenvolvedor Javascript

São José dos Campos, SJCampos

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Renato Lins

há 1 mês

Python Iteration

Understanding iteration in Python is essential for mastering the language's
programming capabilities. In this exploration, we will delve into key insights
regarding Python iterables, their associated structures, and related practices.

The content aims to help anyone in understanding the fundamental
concepts of Python iteration in a clear and thoughtful manner. Join me in
uncovering the power and elegance of Python's iteration machanisms.

nZ—-r O-H»Zmxo

TPF Tob Mab Edel

Check the tutorial here:
github.com/renatolinsdigital/python-iteration

Link para o repositório:

renatolinsdigital/python-
iteration

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https://github.com/renatolinsdigital/python-iteration

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Renato Lins

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Js Performence tip

In JavaScript, arrays are dynamic structures, meaning their
length can change during the loop iterations if elements are
added or removed. The length property of an array is often
used to control the loop's termination condition:

| NN J
for (let i = @; i < myArray.length; i+) {

}

However, accessing the length property within each iteration
can introduce a small performance overhead, especially when
dealing with larger arrays. In that scenario, it would be
advisable to use code similar to this:

const arraySize = myArray.length;
for (let 1 = 0; 1 < arraySize; i+) {

}
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Renato Lins

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Javascript Closures

A closure in JavaScript occurs when an inner function retains
access to variables from its outer (enclosing) function's scope,
even after the outer function has completed its execution. This
allows the inner function to "remember" and utilize those
variables whenever it's called, creating a lasting connection
between the inner and outer functions.

function createMultiplier(factor) {

The inner function: below retair the outer cope factor value -even-after createMultiplier has executed.

return function (value) {
return value * factor;
IH

}

createMultiplier(2);
createMultiplier(3);

const double
const triple

console.log(double(5)); Outputs 10
console.log(triple(5)); ITT!

And that's literally it. Closures are essential for various
programming patterns, like creating private data, implementing
data encapsulation, and achieving certain functionalities in
functional programming and asynchronous programming.

Rl Renato Lins - Developer & Designer

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