The Lodash _.best() method takes an array and a function and generates the best suitable value from that array using the conditions of the function.
Syntax:
_.best(array, function)
Parameters: This method accepts two parameters as mentioned above and described below:
- array: The given array from which the best value is calculated.
- function: The function which contains the condition for the best matching value.
Return Value: This method returns the best value from the array.
Note: This will not work in normal JavaScript because it requires the lodash contrib library to be installed.
Module Installation: Lodash contrib library can be installed using the following command:
npm install lodash-contrib –save
Example 1: In this example, we will get the best value as the greatest value from the array.
// Defining lodash contrib variable var _ = require('lodash-contrib');
// Array var array = [11, 2, 43, 14, 12];
// Getting best value using best() method var best_val = _.best(array, function(x, y) {
return x > y;
}); console.log("Array : ", array);
console.log("Best value : ", best_val);
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Output:
Array : [ 11, 2, 43, 14, 12 ] Best value : 43
Example 2: In this example, we will get the best value as the smallest value from the array.
// Defining lodash contrib variable var _ = require('lodash-contrib');
// Array var array = [11, 2, 43, 14, 12];
// Getting best value using best() method var best_val = _.best(array, function(x, y) {
return x < y;
}); console.log("Array : ", array);
console.log("Best value : ", best_val);
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Output:
Array : [ 11, 2, 43, 14, 12 ] Best value : 2
Example 3: In this example, we will get the best matching value as 12 from the array.
// Defining lodash contrib variable var _ = require('lodash-contrib');
// Array var array = [11, 2, 43, 14, 12];
// Getting best value using best() method var best_val = _.best(array, function(x) {
return x == 12;
}); console.log("Array : ", array);
console.log("Best value : ", best_val);
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Output:
Array : [ 11, 2, 43, 14, 12 ] Best value : 12