What is the best way to extract a specific value from a JavaScript function?

Question

What is the best way to extract a specific value from a JavaScript function?

I've got a simple piece of code that finds the highest number in an array.

const getMax = (data) => Object.entries(data).reduce((max, item) => max[1] > item[1] ? max : item);

var myData1 = { a: 1, b:2, c: 3};
var myData2 = { a: 4, b:2, c: 3};

console.log(getMax(myData1));
console.log(getMax(myData2));

The result returned:

[ 'c', 3 ]
[ 'a', 4 ]

This function is crucial for various tasks. How can I specifically print only the first calculated value ('c' or 'a') and then specifically print the output of the second value (3 or 4)?

Appreciate any help on this. Thanks.

javascript arrays function

Answer 1

Answer №1

When a function is executed, it can only produce a single output value, whether that value is straightforward or intricate. However, you have the option to store the more complex result from the function and then access its individual components:

const getMax = (data) => Object.entries(data).reduce((max, item) => max[1] > item[1] ? max : item);

var myData1 = { a: 1, b:2, c: 3};
var myData2 = { a: 4, b:2, c: 3};
var result1 = getMax(myData1);
var result2 = getMax(myData1);
var simple1_0 = result1[0];
var simple1_1 = result1[1];
var simple2_0 = result2[0];
var simple2_1 = result2[1];
console.log(simple1_0);
console.log(simple1_1);
console.log(simple2_0);
console.log(simple2_1);

Answer 2

When a function is executed, it can only produce a single output value, whether that value is straightforward or intricate. However, you have the option to store the more complex result from the function and then access its individual components:

const getMax = (data) => Object.entries(data).reduce((max, item) => max[1] > item[1] ? max : item);

var myData1 = { a: 1, b:2, c: 3};
var myData2 = { a: 4, b:2, c: 3};
var result1 = getMax(myData1);
var result2 = getMax(myData1);
var simple1_0 = result1[0];
var simple1_1 = result1[1];
var simple2_0 = result2[0];
var simple2_1 = result2[1];
console.log(simple1_0);
console.log(simple1_1);
console.log(simple2_0);
console.log(simple2_1);

What is the best way to extract a specific value from a JavaScript function?

Answer №1

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