In this article, we are given a Sentence having multiple strings. The task is to replace multiple strings with new strings simultaneously instead of doing it one by one, using JavaScript.
Below are a few methods to understand:
Method 1: Using JavaScript replace() method
This method searches a string for a defined value, or a regular expression, and returns a new string with the replaced defined value.
Syntax:
string.replace(searchVal, newvalue);
Example: This example uses the RegExp to replace the strings according to the object using the replace() method.
let str = "I have a Lenovo Laptop, a Honor Phone, and a Samsung Tab." ;
let Obj = { Lenovo: "Dell" ,
Honor: "OnePlus" ,
Samsung: "Lenovo"
}; function GFG_Fun() {
console.log(str.replace(/Lenovo|Honor|Samsung/gi, function (matched) {
return Obj[matched];
}));
} GFG_Fun() |
I have a Dell Laptop, a OnePlus Phone, and a Lenovo Tab.
Method 2: Using the JavaScript str.replaceAll() method
In this example, we will see the use of the JavaScript str.replaceAll() method for replacing multiple strings.
Example: This example shows the implementation of the above-explained appraoch.
const str = 'who.where_when-how' ;
const result = str .replaceAll( '.' , '?' )
.replaceAll( '_' , '?' )
.replaceAll( '-' , '?' );
console.log(result); |
who?where?when?how