How Can I Create a Range Function in JavaScript Like PHP's range()?

JavaScript's Equivalent to PHP's range()

JavaScript does not provide a built-in method that directly mimics PHP's range() function. However, you can achieve similar functionality using alternative approaches:

Numeric Range:

• Spread array operators: [...Array(5).keys()]; // [0, 1, 2, 3, 4]

Character Range (ASCII):

• Iterate over character codes: String.fromCharCode(...[...Array('D'.charCodeAt(0) - 'A'.charCodeAt(0) 1).keys()].map(i => i 'A'.charCodeAt(0))); // "ABCD"

Generic Range (Iterator):

• Iterate with Array() and keys(): for (const x of Array(5).keys()) { // "A", "B", "C", "D", "E"

Custom Functions:

• Define a function range() for numbers: function range(size, startAt = 0) {...};
• Define a function characterRange() for characters: function characterRange(startChar, endChar) {...};

Typed Functions (Optional):

• Utilize type annotations to enforce specific types for inputs and outputs.

External Libraries:

• Lodash's _.range() function provides a comprehensive range generator with advanced features.

Non-ES6 Browser Compatibility (Legacy):

• Use the following code for older browsers without libraries: Array.apply(null, Array(5)).map(function (_, i) {return i;});

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