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Not so easy functional programming in JavaScript

Introduction JavaScript allows for operating on arrays in a functional way, e.g. using filter or map functions. As an argument for these functions we can pass lambda expression or function reference. Is there a difference between them? The answer is yes. What’s the problem? In our project we are builing a mapping using String.fromCharCode function. To simplify the usage of ...

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JavaScript Array concat() Example

Greetings readers, in this tutorial, we will understand the array concat() method in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language ...

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JavaScript String includes() Example

Greetings readers, in this tutorial, we will understand the includes() method in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes: ...

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JavaScript RegEx Example

Greetings readers, in this tutorial, we will understand and implement the regular expressions in the javascript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting ...

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JavaScript Hide and Show Example

Greetings readers, in this tutorial, we will understand how to hide and show an element in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The ...

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JavaScript Iterators Example

Greetings readers, in this tutorial, we will understand Iterators in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes: Declaring variables ...

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JavaScript Closures Example

Greetings readers, in this tutorial, we will understand Closures in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes: Declaring variables ...

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JavaScript Scope Example

Greetings readers, in this tutorial, we will understand the Global and Local scoped variables in the JavaScript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript ...

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JavaScript Get URL Parameter Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language to get the URL parameters. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. ...

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