(...)
Let's ignore popularity level for the moment, no other proposal has analog of
`=>` which is a solution for a real problem:
var self = this;
function callback() {
self....
}
Sorry, alternatives were evocated. If you had read my last mail (I know it was
a pretty long one so I don’t blame you), you could have noticed that I proposed
to use the @-syntax to perform just that. The idea would be that all lambdas
would have a “bound” this (which would be the biggest distinctive between them
and functions).
The syntax would be the following :
“@” + ( “(“ + <argument-list> + “)” )? + ( <expression> | <block> )
And it would allow to solve the “this” problem easily :
element.onclick = @this.removeFromParent();
setTimeout((@alert(this)), 10);
alongside with the other common lambda usage :
firstChilds = elements.map(@a.firstChild);
array.reduce(@(a,b) { return (a-b)*(a+b); });
In case you need to pass a function that has not a bound this, you should
continue to use the “function” keyword as usual :
var anObjectHasOwnValueOf = Function.prototype.bind.call(function() {
return this.hasOwnProperty(“valueOf”);
}, anObject);_______________________________________________
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