replace(‘JavaScript’, ‘Java’); //”Java is JavaScript!” If you specify a value (instead of a regular expression), only the first occurrence of the value will be replaced. To replace all occurrences (case-sensitive) of a specified value, we can use a regular expression with global modifier ( g flag) .

replace(‘JavaScript’, ‘Java’); //”Java is JavaScript!” If you specify a value (instead of a regular expression), only the first occurrence of the value will be replaced. To replace all occurrences (case-sensitive) of a specified value, we can use a regular expression with global modifier ( g flag) .