On: Silent Teacher – A game to learn how to code

[matchu]

What's an example of a language that, when adding two strings/chars, parses them as integers first?

[sp332 → matchu]

In perl you use + for addition and . for concatenation. So '3' + '4' converts the strings to integers and returns an integer, and 3 . 4 converts them to strings first and returns a string.

[NhanH → matchu]

In addition to the answer of Perl and TCL, PHP would too, since the concatenate operator in PHP is "." - any dynamic and/or weak typing language that doesn't overload "+" for string concatenation will probably behave the same way.

[manveru → matchu]

How about TCL?

    % expr "3" + "4"
    7
    % expr "3" + 4
    7
    % expr 3 + 4
    7

[marcosdumay → matchu]

Perl.

Altough its adition only apply to numbers, so that would be a bad example, it does automaticaly interpret digit strings as numbers.

[_pmf_ → matchu]

> What's an example of a language that, when adding two strings/chars, parses them as integers first?

The cancerous piece of shit we know as Javascript.

[croddin → _pmf_]

No, Javascript will concatenate two strings that contain integers if you add them.

"1"+"1" //=> "11"

[notduncansmith → _pmf_]

As 'croddin pointed out, this is flat-out wrong - and that attitude is hardly conducive to a constructive discussion.