// Our string
var str = "Fat baby CAT is my best buddy little bat.";
// Two ways to write regular expressions
var exp = /at/;
/* var exp = new RegExp('at'); */
// Our replacement
var repl = 'og';
// A few ways to use regular expressions
/* var resultReplace = str.replace(exp, repl); */
/* var resultMatch = str.match(exp); */
/* var resultTest = exp.test(str); */
/* var resultExec = exp.exec(str); */
// Log the results to the console
console.log("str: ", str);
/* console.log("replace:", resultReplace); */
/* console.log("match: ", resultMatch); */
/* console.log("test: ", resultTest); */
/* console.log("exec: ", resultExec); */
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