camelCase.js

// add is camelCase
// Use it like a function
function add(a, b) {
  return a + b;
}
 
// Use it like a function
let result = add(1, 2);
console.log("result", result);
 
// Do NOT use it with new
// Sigh! It doesn't give an error
let unexpected = new add(1, 2);
 
// NOW, it gives weird result
console.log("unexpected", unexpected);
 
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Output
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result 3
unexpected add {}