🗃️ Reduce clear solution for Sum by Type by zborde - javascript coding challenges

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🗃️ Reduce solution in Clear category for Sum by Type by zborde

var sumByTypes=(v: Array): [string, number] =>
    v.reduce( (a, x) => ( typeof x === 'string' )? [ a[0]+x, a[1] ]: [ a[0], a[1]+x ] ,['', 0] );

May 15, 2020

Comments:

vincent.tscherter on May 22, 2020, 7:40 a.m.
you may decompose ```(a, x)``` to ```([first, second], x)``` and skipp the ```a[i]```'s

zborde on May 22, 2020, 7:44 a.m.
Thx. Nicer and shorter. I will use it.

zborde on May 22, 2020, 7:50 a.m.
Nicer: <pre class='brush: javascript'>var sumByTypes=(v: Array<number|string>): [string, number] => v.reduce( ( [ s, n ], x) => typeof x === 'string' ? [ s+x, n ]: [ s, n+x ] ,['', 0] ); </pre>

Scientific Expedition

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