js range
Array.apply( null, { length: 6 } ).map( Function.call, Number );
// es6
Array.from( new Array( 6 ), ( v, i ) => i ); // [ 0, 1, 2, 3, 4, 5 ]
Array.from( new Array( 6 ), ( v, i ) => ++i ); // [ 1, 2, 3, 4, 5, 6 ]
Array.from( Array( 6 ).keys( ) )
Written by Bruce Lim
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