How React's ES6 syntax is different from ES5 syntax?

1. require vs. Import

// ES5
var React = require('react');

// ES6
import React from 'react';

2. exports vs. export

// ES5
module.exports = Component;

// ES6
export default Component;

3. component and function

// ES5
var MyComponent = React.createClass({
render: function() {
return(
<h3>Hello JavaTpoint</h3>
);
}
});

// ES6
class MyComponent extends React.Component {
render() {
return(
<h3>Hello Javatpoint</h3>
);
}
}

Python Complete Tutorial by Guido Van Rossum and Team

Common Coding Mistakes to Avoid
Even experienced programmers make mistakes.

Undefined variables:

Ensure all variables are declared and initialized before use.

Type coercion:

Be mindful of JavaScript's automatic type conversion, which can lead to unexpected results.

Incorrect scope:

Understand the difference between global and local scope to avoid unintended variable access.

Logical errors:

Carefully review your code for logical inconsistencies that might lead to incorrect output.

Off-by-one errors:

Pay attention to array indices and loop conditions to prevent errors in indexing and iteration.

Infinite loops:

Avoid creating loops that never terminate due to incorrect conditions or missing exit points.

Example:
// Undefined variable error
let result = x + 5; // Assuming x is not declared

// Type coercion error
let age = "30";
let isAdult = age >= 18; // Age will be converted to a number

By being aware of these common pitfalls, you can write more robust and error-free code.

Do you have any specific coding mistakes you've encountered recently?

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Reduce latency, optimize traffic flow, and secure your network with firewall & DNS adjustments.

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Optimize queries, indexes, and partitions to speed up data retrieval and improve overall DB performance.

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