hello world javascript

JavaScript
// Output Hello World! in the console.
console.log("Hello World!");I would do something like this:

<script>
  alert("Hello World!");
</script>
var msg = "hello world";
console.log(msg);console.log("Hello World!");console.log("Hello, World!");

console.error("Error, World!"); // For errors

console.warn("Warning, World!"); // For warnings

console.clear(); // To clear the console
Source

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