The replaceAt() Function

The replaceAt() function separates the value of the string parameter into elements according to the specified separator parameter, and then replaces the element with the given index with the substring parameter.

Syntax

Example

var a = String.replaceAt("Visit W3Schools!","I love",0," ");
var b = String.replaceAt("Visit W3Schools!","us!",2," ");

Result

a = "I love W3Schools!"
b = "Visit us!"

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