More examples below. ... The substring() method extracts characters, between two indices (positions), from a string, and returns the substring.

The substring() method of String values returns the part of this string from the start index up to and excluding the end index, or to the end of the string if no end index is supplied.

March 22, 2020 - The substring method expects two parameters: ... Let’s see the usage in an example. Suppose that we have the example string below: const myString = "I am learning JavaScript and it is cool!";

In this example, we have declared a variable called totn_string that is assigned the string value of 'TechOnTheNet'. We have then invoked the substring() method of the totn_string variable to extract the substring from the string.

August 26, 2026 - To get a substring from a string in JavaScript, you can use the built-in string.substring(start, end) method.

if (string.substring(i, i + oldChars.length) == oldChars) { string = string.substring(0, i) + newChars + string.substring(i + oldChars.length, string.length); } } return string; } const string = "Java Tutorials"; let newString = replaceString("Java", "JavaScript", string); console.log(newString); ...

July 25, 2024 - The example below demonstrates how to use the substring() method to retrieve a portion of a string: const str = "Can I have a piece?"; console.log(str.substring(11, 18)); // Expected output: a […]

January 9, 2025 - This JavaScript Substrig article will provide in-depth knowledge about the same in the following sequence: ... A substring is a subset of another string. It is a contiguous sequence of characters within a string. For example, “Welcome to Edureka” ...

November 3, 2024 - The following example uses the substring method to extract a substring starting from the beginning of the string: let str = 'JavaScript Substring'; let substring = str.substring(0,10); console.log(substring);Copy

May 29, 2025 - This codebyte example uses the .substring() method with the startIndex parameter being greater than endIndex to extract characters from index 0 to index 6 in the str string:

The substring() method takes two parameters: the start index and the end index (optional). The extraction includes characters from the start index up to, but not including, the end index. ... Become a full-stack developer. Learn HTML, CSS, JavaScript, and React as well as NodeJS, Express, and SQL

June 22, 2021 - First mismatch is when the start position is greater than the end position. In case of the substring() method, two parameters are swapped and used that way. No problem. For the slice() method, this means an empty result. Another example is using negative values.

October 28, 2021 - const todo1 = "01 - Pick up dry-cleaning"; const todo2 = "02 - Go food shopping"; const todo1Task = todo1.substring(5); const todo2Task = todo2.substring(5); The example above shows how you can return the rest of the string after a specified ...

August 7, 2026 - When we use the first argument ... from the beginning of a string. In the example, we use zero and 11 as the starting and ending index positions of the substring() function....

October 19, 2023 - If either index is negative or greater than the length of the string, the method treats it as 0. Let’s see an example: const text = "JavaScript is awesome"; const substring = text.substring(10, 5); console.log(substring); // "JavaS"

5 days ago - 'JavaScript'.substring(4, 3) does not return 3 characters starting at index 4; it swaps the arguments and returns 'a'. To take n characters from start, write substring(start, start + n).

January 1, 2025 - In this post, we exercised the use of JavaScript substring() with some basic examples. We first learned that substring() is a String extraction method that returns a target portion from a parent string.

September 27, 2024 - The script fetches the user's name example by cutting off at the "@" character's index. The substring() method in JavaScript serves as a powerful tool for extracting specified ranges from strings. Its intuitive handling of indices, including adjustments for out-of-bounds values, makes string ...

<html><head><title>JavaScript String substring() Method</title></head><body><script> const str = "Hypertext Markup Language"; let indexStart = 5; let indexEnd = 16; document.write("Original string: ", str); document.write("<br>Indices are: ", indexStart, ", ", indexEnd); document.write("<br>Extracted string: ", str.substring(indexStart, indexEnd));</script> </body></html>