In this example, 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:
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.
<body style="text-align:center;" id="body">
<h1 style="color:green;">GeeksForGeeks</h1>
<h3>
JavaScript | Replace multiple strings with multiple other strings.
</h3>
<p id="GFG_UP" style="font-size: 19px; font-weight: bold;">
</p>
<button onClick="GFG_Fun()">
click here
</button>
<p id="GFG_DOWN" style="color: green; font-size: 24px; font-weight: bold;">
</p>
<script>
var up = document.getElementById('GFG_UP');
var down = document.getElementById('GFG_DOWN');
var str = "I have a Lenovo Laptop, a Honor Phone, and a Samsung Tab.";
var Obj = {
Lenovo: "Dell",
Honor: "OnePlus",
Samsung: "Lenovo"
};
up.innerHTML = str;
function GFG_Fun() {
down.innerHTML = str.replace(/Lenovo|Honor|Samsung/gi, function(matched){
return Obj[matched];
});
}
</script>
</body>Output :
