CODEWITHSUNDEEP
javascriptternary-operator
Joe Crawley
Joe Crawley

Reputation: 725

two ternary expressions in one

I'm trying to express these two ternary operators in one expression. Can someone help me?

    var longer = a.length > b.length ? a: b;
    var shorter = a.length > b.length ? b : a;

Thanks!

Upvotes: 3

Views: 111

Answers (5)

prashanth
prashanth

Reputation: 2099

I saw this question was answered already. But, I have attempted it for fun,

shorter = ((a.length < b.length) && (longer = b))||((longer = a)&&false) ? a: b;

UPDATE:

As @MattWhipple suggests, you can make it shorter (you may see warning in the console)

((a.length < b.length) && (shorter = a) && (longer = b)) || ((shorter = b) && (longer = a))

Upvotes: 0

Matt Whipple
Matt Whipple

Reputation: 7134

The clearest solution with the 2 values would be something like (may have to adjust the syntax):

[shorter, longer] = [a, b].sort(function(a, b) {return a.length > b.length});

Upvotes: 0

Joe Davis
Joe Davis

Reputation: 233

You could make the first expression an assignment that gets nested as the condition of the second.... but in this case, I think you should keep the two separate lines in order to avoid obfuscating your code. Nesting the ternaries will not give you a performance boost and therefore serves no useful purpose.

Upvotes: 0

zw324
zw324

Reputation: 27210

You can do this since JavaScript 1.7 (its 1.8.5 now): Destructuring assignment (Merge into own page/section).

As everyone could (possibly) imagine, the cross-browser compatibility is abysmal. But since this is a homework question I'll leave it here as an answer.

Upvotes: 3

joshstrike
joshstrike

Reputation: 1823

It's not possible if you plan on declaring both variables in the expression.

Upvotes: 2

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