br

(module ;; import the browser console object, you'll need to pass this in from JavaScript (import "console" "log" (func $log (param i32))) ;; create a global variable and initialize it to 0 (global $i (mut i32) (i32.const 0)) (func (loop $my_loop ;; add one to $i global.get $i i32.const 1 i32.add global.set $i ;; log the current value of $i global.get $i call $log ;; if $i is less than 10 branch to loop global.get $i i32.const 10 i32.lt_s br_if $my_loop ) ) (start 1) ;; run the first function automatically ) 

const url = "{%wasm-url%}"; await WebAssembly.instantiateStreaming(fetch(url), { console }); 

;; label the loop so that it can be branched to (loop $my_loop ;; branch to the loop. ;; most of the time you'll want to put this in an if statement and only branch on condition, ;; otherwise you have an infinite loop. br $my_loop )