javascript - How to apply js .join() method to my array after every two values in the array -

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i have array of lat longs:

latlong = [51.49, -0.05, 51.48, 0.16]

i want convert string in format:

latlon_string = "lat,lon lat,lon lat,lon"  working example: latlon_string = "51.49,-0.05 51.48,0.16"

i tried using join() method apply space after every 2 values couldn't figure out how that. or there better solution? thanks

you can join array , replace every second comma space this:

latlong = [51.49, -0.05, 51.48, 0.16]; latlon_string = latlong.join(',').replace(/(,[^,]*),/g ,'$1 '); console.log(latlon_string); // 51.49,-0.05 51.48,0.16

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