JavaScript Tips — Errors, Auto-Resizing Text Area, and More

Like any kind of apps, there are difficult issues to solve when we write JavaScript apps.

In this article, we’ll look at some solutions to common JavaScript problems.

Replace All Commas in a String

We can replace all commas in a string with the replace method.

For instance, we can write:

const str = 'foo,bar,baz';
const newStr = str.replace(/,/g, '-');

Then newStr is “foo-bar-baz” .

Good Way to Extend Error in JavaScript?

We can extend the Error class with the extends keyword.

For instance, we can write:

class SpecialError extends Error {
  constructor(message) {
    super(message);
    this.name = 'special error';
  }
}

We created a SpecialError class which inherits from the Error class.

We can set our own name to distinguish it from the Error instance.

#javascript

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top 30 Python Tips and Tricks for Beginners

Welcome to my Blog , In this article, you are going to learn the top 10 python tips and tricks.

1) swap two numbers.

2) Reversing a string in Python.

3) Create a single string from all the elements in list.

4) Chaining Of Comparison Operators.

5) Print The File Path Of Imported Modules.

6) Return Multiple Values From Functions.

7) Find The Most Frequent Value In A List.

8) Check The Memory Usage Of An Object.

…

#python #python hacks tricks #python learning tips #python programming tricks #python tips #python tips and tricks #python tips and tricks advanced #python tips and tricks for beginners #python tips tricks and techniques #python tutorial #tips and tricks in python #tips to learn python #top 30 python tips and tricks for beginners

Text to Speech in Node.js

In this video, I will be showing you how to turn text into speech in Node.js

#javascript #text to speech #javascript api #text to speech app #node.js text to speech #javascript text to speech

The essential JavaScript concepts that you should understand

As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.

#javascript-interview #javascript-development #javascript-fundamental #javascript #javascript-tips

How to start writing less error-prone code in JavaScript

Everything in JavaScript is an object!’. We said that this assertion is false. Many things in JavaScript can behave like an object, but that doesn’t mean it’s the object. We can say we have three types of objects (objects, functions and arrays) in JavaScript.

In ECMAScript Specification, the functions aren’t on the type list. Intuitively, function values have a specific behaviour, that is different from values that are numbers - so isn’t it a type? JavaScript refers to functions as a sub-type of the object type - sometimes refers to them as a callable object.

Conclusion: Functions are sort of type, but a sub-type - not a top level type…

#javascript-development #javascript-tips #programming-tips #javascript #programming

JavaScript Tips — Errors, Auto-Resizing Text Area, and More

Like any kind of apps, there are difficult issues to solve when we write JavaScript apps.

In this article, we’ll look at some solutions to common JavaScript problems.

Replace All Commas in a String

We can replace all commas in a string with the replace method.

For instance, we can write:

const str = 'foo,bar,baz';
const newStr = str.replace(/,/g, '-');

Then newStr is “foo-bar-baz” .

Good Way to Extend Error in JavaScript?

We can extend the Error class with the extends keyword.

For instance, we can write:

class SpecialError extends Error {
  constructor(message) {
    super(message);
    this.name = 'special error';
  }
}

We created a SpecialError class which inherits from the Error class.

We can set our own name to distinguish it from the Error instance.

#javascript