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How to Efficiently Find the Largest Value in a JavaScript Array?

Susan Sarandon
Susan SarandonOriginal
2024-10-27 01:27:03766browse

How to Efficiently Find the Largest Value in a JavaScript Array?

Determining the Largest Value in a JavaScript Array

JavaScript arrays offer a native method for finding the largest number they contain. However, for a concise solution, the user community developed a custom function:

Array.max = function( array ){
    return Math.max.apply( Math, array );
};

Usage Example:

Consider the following array:

[267, 306, 108]

Applying the Array.max function to this array returns the largest number:

Array.max([267, 306, 108]); // 306

However, it's worth noting that the maximum number of arguments permitted on some VMs can be low (e.g., 65535). If the array is exceptionally large, it's advisable to use a for loop for safety:

var max = array[0];
for (var i = 1; i < array.length; i++) {
    if (array[i] > max) {
        max = array[i];
    }
}

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