Question

72

rated 0 times [ 79] [ 7] / answers: 1 / hits: 146231 / 8 Years ago, wed, february 10, 2016, 12:00:00

Is there a method in lodash to map over an array of arrays

I would like to do something like this so that it keeps the structure of the array.

def double(x) { return x*2 }



_([[1,2],[3,4]]).somemethod(double) == [[2,4],[6,8]]

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3 Years ago

answered 8 Years ago isaacvalentinn · Accepted Answer

You can make your code much cleaner with ES2015 arrow functions:

var array = [[1, 2], [3, 4]];

var double = x => x * 2;

var doubledArray = _.map( array, subarray => _.map( subarray, double ));

Using vanilla JS:

var array = [[1, 2], [3, 4]];

var double = x => x * 2;

var doubledArray = array.map( subarray => subarray.map( double ));