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James Duncan
on Tue Oct 17 2006 14:46:33 GMT+0100 (GMT)
Mozilla have now released Firefox 2 RC 3, and with it comes JavaScript 1.7. You've been able to use the 1.7 features of JavaScript in Zimki for some time now, but the Firefox release provides a nice moment for me to talk about them here. For example generators and iterators, block scoping and my personal favorite, destructuring assignment.
Destructuring assignment is a thing of great beauty. Basically it means that the elements are decomposed in the logical pairs when assigning values to variables:
[a, b, c, d] = [1, 2, 3, 4];
Saving you from having to type:
a = 1;
b = 2;
c = 3;
d = 4;
Naturally it goes further, and lets you swap values in a fairly obvious way:
[a,b] = [b,a];
Or assign multiple values from a function:
function foo() {
return [1, 2];
}
[a, b] = foo();
Probably also worthy of note is that the new features of JavaScript 1.6 are all available in Zimki too (like E4X & Array Extras, as well as for each…in.
JavaScript is a lovely language to write code in, and these features are only helping…
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