Join
Convert the elements of an array into a string:
var c = [ ['a','b'], ['c','d']]
c.map( row => {return row.join() }).join('\n');
// Map returns ['a,b', 'c,d'];
// "a,b
c,d"
Object.keys
var a =['a', 'b']
Object.keys(a);
// Return array of keys
["0", "1"]
No comments:
Post a Comment