replace all occurrences of a string

 #1

ExampleString = 'the dog looks like a dog';

ConvertString = ExampleString.replace(/dog/g, 'cat');

#2

ExampleString = 'the dog looks like a dog';

ExampleString.split("dog").join("cat");

#3

ExampleString = 'the dog looks like a dog';

while(ExampleString.includes("dog")){

   ExampleString = ExampleString.replace("dog", "cat");

}