Useful JavaScript String Prototypes

Ciprian on Monday, April 16, 2018 in Methods, Events and Scopes
Last modified on Monday, May 16, 2022

This is a function to remove all double whitespaces and preceding line breaks.

/**
 * Prototype function to remove all double whitespaces and preceding line breaks
 */
String.prototype.allTrim = String.prototype.allTrim || function() {
    return this
        .replace(/ +/g, ' ')
        .replace(/\n\s*\n/g, '\n')
        .replace(/(\r\n|\n|\r)/gm, '') // Remove all 3 types of line breaks
        .replace(/^,+/, '')
        .replace(', ,', ',')
        .trim();
};

// Usage:
// string.allTrim();

This is a function to replace all line breaks with commas.

/**
 * Prototype function to replace all line breaks with commas
 */
String.prototype.allCommas = String.prototype.allCommas || function() {
    return this
        .replace(/(\r\n|\n|\r)/gm, ', ')
        .allTrim()
        .trim();
};

// Usage:
// string.allCommas();

Enjoy!

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