How to use substring() method In Javascript
The string.substring() is an inbuilt function in JavaScript that is used to return the part of the given string from the start index to the end index. Indexing start from zero (0).
Syntax:
string.substring(Startindex, Endindex)
Example: In this example, we will split the string using substring method and add the given string at the given index.
// Input String
let origString = "GeeksGeeks";
// String to be added
let stringToAdd = "For";
// Position to add string
let indexPosition = 5;
// Using substring method to split string
newString = origString.substring(0, indexPosition)
+ stringToAdd + origString.substring(indexPosition);
// Display output
console.log(newString);
Output
w3wiki
How to insert a string at a specific index in JavaScript ?
In this article, we are given a string containing words and the task is to insert a new string at a given index. Inserting string at a particular position means increasing the length of the original string.There are some methods like slice( ), splice( ), and substring( ) to solve this problem which are discussed below:
Table of Content
- Method 1: Using the slice() method
- Method 2: Using the splice() method
- Method 3: Using JavaScript substring() method
- Method 4: Using String Concatenation