Modulo Operator %%
waldemar at google.com
Thu Aug 15 00:49:44 UTC 2019
On 8/13/19 8:32 PM, Michael Haufe wrote:
> On 8/13/19 7:27 AM, Michael Haufe wrote:
>> I would prefer the syntax be ‘a mod b’ consistent with my wishlist item:
> On 8/13/19 9:12 PM, Waldemar Horwat wrote:
>> This can bring up various syntactic troubles. What does the following do?
>> let mod
>> Is it calling the mod operator on the variable named "let" and +3? Or is it defining a variable named "mod" with no initializer, followed by an expression?
> I can't declare 'let' or 'var' as variable names, but even if I could (Say non-strict mode or ES3) that form would be a VariableDeclaration followed by an ExpressionStatement.
> The proposed grammar extension is:
> MultiplicativeOperator: one of
> * / % div mod
And I'm saying that's potentially problematic because it changes the meaning of existing programs that happen to use "mod" as a variable name. The above is one example that would turn a let statement into a mod expression. Here's another example:
x = 4
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