blog

https://stackoverflow.com/questions/50098277/why-let-keyword-does-not-work-with-eval/50098375 why let keyword does not work with eval() function foo(str, a) { eval( str ); console.log( a, b ); } foo( "var b = 3;", 1 ); This works just fine, but when we use let instead of var, it does not work. Why? stackoverflow.com

The concept of wrapping a piece of program in a value has many uses. Defining a function A function definition is a regular binding where the value of the binding is a function. const square = function(x) { return x * x; }; console.log(square(12)); A function is created with an expression that starts with the keyword function. const makeNoise = function() { console.log("Pling!"); }; const power ..