Type Conversion

String Conversion 

 You can call the String() function to explicit convert a value to a string 

 String(false) -> "false"

String(null) -> "null" 

 Numeric Conversion 

 Occurs when you use math functions and expressions 

 console.log("6" / "2"); // Print out 3! 

 Or you can also do it more explicitly by calling the  Number() function. 

 However, note that any non-digit character that shows up in String will result in the conversion value NaN 

 console.log(Number("lol")); // Results in NaN 

 Here is the table of conversion for some common values passed into Number() 

 

 

 

 Value 

 

 Becomes 

 

 

 

 undefined 

 NaN 

 

 

 null 

 0 

 

 

 true and false 

 1 and 0 

 

 

 string 

 Empty string is 0, then convert the string to number, if any non-digit character are present results in NaN 

 

 

 

 Boolean Conversion 

 Like mentioned before, any number that's besides 0 are considered to be true. 

 You can call the Boolean() function to explicitly convert a value to be either true/false 

 Non-empty strings are also considered to be true so even "0" is considered to be true.