Use PHP functions in JavaScript

JavaScript array_product

Returns the product of the array entries

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function array_product ( input ) {
    // Returns the product of the array entries  
    // 
    // version: 909.322
    // discuss at: http://phpjs.org/functions/array_product    // +   original by: Waldo Malqui Silva
    // *     example 1: array_product([ 2, 4, 6, 8 ]);
    // *     returns 1: 384
    var Index = 0, product = 1;
    if ( input instanceof Array ) {        while ( Index < input.length ) {
            product *= ( !isNaN( input [ Index ] ) ? input [ Index ] : 0 );
            Index++;
        }
    } else {        product = null;
    }
 
    return product;
}
external links: original PHP docs | raw js source

Examples

Running

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array_product([ 2, 4, 6, 8 ]);

Should return

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384

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

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Eventually we want all code to pass or at least take into consideration most fixes suggested by JsLint, following this JsLint configuration we’ve decided on.


Authors

Thanks to the following developers, you get to have array_product goodness in JavaScript.

Comments

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