javascript-lodashHow can I use Lodash's map function in JavaScript?
Lodash's map
function can be used to iterate over an array or object and apply a transformation to each element. It is a convenient way to perform a common operation on a collection of data.
Here is an example of using map
to double the values of an array of numbers:
const numbers = [1, 2, 3, 4, 5];
const doubled = _.map(numbers, (num) => {
return num * 2;
});
console.log(doubled);
// Output: [2, 4, 6, 8, 10]
In this example:
numbers
is an array of numbers that we want to double.doubled
is a new array that we will create by mapping over the original array._.map
is the Lodash map function that will iterate over the array and apply the transformation.- The transformation is a function that takes a single argument
num
and returns the result of multiplying it by 2.
Helpful links
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