Map Of The World Country

Javascript Map On Empty Array: I want to use.map() to return a new array which is the same as the old one but the. Web say i have an array [1,2,1,2,1]; Web since empty arrays in javascript are truthy, you need to check the array's length and not just the boolean.

Javascript Map On Empty Array

I want to use.map() to return a new array which is the same as the old one but the. Web say i have an array [1,2,1,2,1]; Web description map () creates a new array from calling a function for every array element.