Does javascript execution stop when an invalid line is encountered?

Question

If the browser is executing JavaScript on a web page and it encounters invalid JavaScript (e.g. somerandomthingy;) Does execution of JavaScript stop at that point, or do async o

Answer 1

No code is executed past the error.

function inAFunction(){
 alert("one");
 x = y;
 alert("two");  
}
inAFunction();

you will see "one" but not "two"

alert("one");
x = y;
alert("two");

you will see "one" but not "two"

var a = {
    b : c
}
alert("here");

you will see nothing.