The replace() method
The replace() method replaces a specific character in a string with another.
Depending on the program you want to create, you may want to replace a specific character contained in a string with another character.
Use the replace() method when you want to replace a specific character contained in a string with another character.
You can also replace various patterns by using a replacement rule called a regular expression.
The syntax is below.
string.replace(regexp, newSubstr[, flag])
※Since “flag” is not normally used, it is omitted.
Replace characters in a string
Below is a sample that replaces the character in the string.
let str = "I like football."; let newstr = str.replace("football", "baseball"); console.log(str); console.log(newstr); //result //"I like football." //"I like baseball."
The variable “str” is prepared, and the result of replacing the character “football” with “baseball” in replace is put in the variable “newstr”.
The specified character is replaced with the character to be replaced.
As a result, the string “I like baseball.” is output.