Javascript - How to flatten just first position value of array inside an array? [closed]

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The variable i have:

var array = [['test1', 0], ['test2', 3], ['test4', 45]]

So i need some type of flatten but just for the first values of every array, the output should be:

['test1', 'test2', 'test4']

A simple for loop would be enough. Or .map(), or .reduce(), ... — Andreas
– Andreas, Commented Aug 31, 2021 at 13:57
How to extract values from an array of arrays in Javascript? — Andreas
– Andreas, Commented Aug 31, 2021 at 13:59

eliezra236 · Accepted Answer · 2021-08-31 13:56:27Z

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Try using Array.map https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map

var array = [['test1', 0], ['test2', 3], ['test4', 45]] 

var arrayMapd = array.map(item => item[0])

answered Aug 31, 2021 at 13:56

eliezra236

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