wasn't that obvious to me ... anyway, the first, ...mess, last example convinced me ^_^
On Wed, Apr 16, 2014 at 5:27 AM, Егор Николаев <[email protected]> wrote: > ```javascript > let [a = 1, b = 2, ...rest, c = 4, d = 5] = [9, 8, 7]; > ``` > a == 9, b == 8, rest == [], c == 7, d == 5 > obviously. As in coffeescript > > > On Fri, Apr 11, 2014 at 9:53 PM, Tab Atkins Jr. <[email protected]>wrote: > >> On Fri, Apr 11, 2014 at 5:39 AM, Егор Николаев <[email protected]> >> wrote: >> > Long story short: >> > ```javascript >> > function test( a = 1, b = 2, ...rest, c = 4, d = 5) { console.log(a, b, >> > rest, c, d) } >> > >> > test(); // 1, 2, [], 4, 5 >> > test(9, 8); // 9, 8, [], 4, 5 >> > test(9, 8, 7, 6); // 9, 8, [], 7, 6 >> > test(9, 8, 7, 6, 5, 4);// 9, 8, [7, 6], 5, 4 >> > >> > let [a = 1, b = 2, ...rest, c = 4, d = 5] = []; // a == >> 1, b >> > == 2, rest == [], c == 4, d == 5 >> > let [a = 1, b = 2, ...rest, c = 4, d = 5] = [9, 8]; // a == >> 9, b >> > == 8, rest == [], c == 4, d == 5 >> > let [a = 1, b = 2, ...rest, c = 4, d = 5] = [9, 8, 7, 6]; // a == >> 9, b >> > == 8, rest == [], c == 7, d == 6 >> > let [a = 1, b = 2, ...rest, c = 4, d = 5] = [9, 8, 7, 6, 5, 4];// a == >> 9, b >> > == 8, rest == [7, 6], c == 5, d == 4 >> > ``` >> >> You skipped the most interesting case - what to do when the list is >> *almost* long enough to accommodate all of the non-rest params. >> >> `let [a = 1, b = 2, ...rest, c = 4, d = 5] = [9, 8, 7];` >> >> It seems, from your second test case, that a=9 and b=8, but which >> variables gets a value of 7 - c or d? >> >> ~TJ >> > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
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