javascript - Self-references in object literal declarations -
is there way following work in javascript?
var foo = { a: 5, b: 6, c: this.a + this.b // doesn't work };
in current form, code throws reference error since this
doesn't refer foo
. is there way have values in object literal's properties depend on other properties declared earlier?
well, thing can tell getters:
var foo = { a: 5, b: 6, c () { return this.a + this.b; } }; foo.c; // 11
this syntactic extension introduced ecmascript 5th edition specification, syntax supported modern browsers (including ie9).
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