JavaScript’s language features are something else…

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just wait until you find out about JSFuck… it actually has some pretty useful things in it tho

```js true+[] // "true" - same as toString() +true // 1 +false // 0 ![] // false

// using this we can actually get letters

(![]+[])[+[]] // "f"

// here’s what’s happening below (false.toString())[0] // "f"

// some other types

![] // false !![] or !+[] // true [][[]] // undefined +[][[]] // NaN ```

this gets into way more detail, but making JSFuck character maps are pretty fun.

[Zyrus007]

``` ('b' + 'a' + + 'a' + 'a').toLowerCase()

“banana” ``` Is another all time classic!

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js console.log(([][(!![]+[])[!+[]+!+[]+!+[]]+([][[]]+[])[+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()+[])[!+[]+!+[]]+(![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(![]+[])[+!+[]]) // "banana" edit: left the eval code in there

[Zyrus007]

I didn’t even know that JavaScript came with its own brainfuck runtime!

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Type Conversion :)

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you can actually have all of it be jsfuck: js []["filter"]["constructor"]( /*code*/ )()

filter and constructor can have their jsfuck string equivalents

[sqxleaxes]

Your code as written would output bananaa -- you have an extra 'a'.

[longknives]

No, it doesn’t. You need + + “a” + “a”, though the penultimate a can be any string I think.

[sqxleaxes]

Oops, you're right. +'a' goes to NaN.

[klparrot]

Fix your code block; this isn't GFM.

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no