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JavaScript String substring() Method

The substring() method does not change the original string. If start is greater than end, arguments are swapped: (4, 1) = (1, 4). Start or end values less than 0, are treated as 0. ... If you want to use W3Schools services as an educational ...

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w3schools.com › js › js_string_methods.asp

JavaScript String Methods

The substr() method is deprecated in the latest JavaScript standard, but is still officially defined in Annex B of the ECMAScript specification for backward compatibility.

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w3schools.com › jsref › jsref_substr.asp

JavaScript String substr() Method

substr() is an ECMAScript1 (JavaScript 1997) feature. It is supported in all browsers: ❮ Previous JavaScript String Reference Next ❯ · ★ +1 · Sign in to track progress · REMOVE ADS · PLUS · SPACES · GET CERTIFIED · FOR TEACHERS ...

developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › String › substring

String.prototype.substring() - JavaScript - MDN Web Docs

If indexEnd is omitted or undefined, substring() extracts characters to the end of the string.

w3schoolsua.github.io › js › js_string_methods_en.html

JavaScript String Methods. Examples. Lessons for beginners. W3Schools in English

If you omit the second parameter, substring() will slice out the rest of the string.

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JavaScript String substring() Method

The substring() method extracts the characters from a string, between two specified indices, and returns the new sub string.

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JavaScript substring() Method - SinSiXX - W3Schools

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W3Schools Tryit Editor - JavaScript Strings

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geeksforgeeks.org › javascript › javascript-string-substring-method

JavaScript String substring() Method - GeeksforGeeks

EndIndex: Describe the part of the string to be taken as a substring(optional).

Published January 16, 2026

capfoe.library.busitema.ac.ug › modules › en-w3schools › content › jsref › jsref_substring.html

JavaScript String substring() Method

The substring() method extracts the characters from a string, between two specified indices, and returns the new sub string.

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JavaScript Strings

The substring() Method · substring() extracts a part of a string:

JavaScript Tutorial

javascripttutorial.net › home › javascript string methods › string.prototype.substring()

JavaScript Substring(): Extract a Substring from a String

November 3, 2024 - In this tutorial, you'll learn how to use the JavaScript substring() method to extract a substring from a string.

w3schools.com › java › ref_string_substring.asp

Java String substring() Method

If the end argument is not specified then the substring will end at the end of the string. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com · If you want to report an error, or if you want to make a suggestion, send us an e-mail: help@w3schools.com · HTML Tutorial CSS Tutorial JavaScript ...

w3schools.com › js › js_string_search.asp

JavaScript String Search

For a complete reference to all JavaScript properties and methods, with full descriptions and many examples, go to: W3Schools' Full JavaScript Reference.

w3schools.com › jsref › jsref_slice_string.asp

JavaScript String slice() Method

The substring() Method · string.slice(start, end) From position 3 to 8: let result = text.slice(3, 8); Try it Yourself » · Only the first character: let result = text.slice(0, 1); Try it Yourself » · Only the last character: let result = text.slice(-1); Try it Yourself » · The whole string: let result = text.slice(0); Try it Yourself » · JavaScript Strings ·

w3schools.com › jsref › jsref_sub.asp

JavaScript String sub() Method

String sub() is deprecated in JavaScript. Avoid using it. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com

tabnine.com › home › how to use the substring method in js

How to Use the substring Method in JS - Tabnine

July 25, 2024 - The substring() method extracts a part of a string from the larger whole. Note: Be careful to not confuse substring() with the substr() method! The example below demonstrates how to use the substring() method to retrieve a portion of a string: ...

stackoverflow.com › questions › 9824895 › substrings-in-javascript-with-substr › 9824939

asp.net - Substrings in Javascript with substr() - Stack Overflow

The substr and substring methods in JavaScript are bound to the String object, so they only work on string types. Use the typeof keyword to determine what time you are applying the methods to.

substr takes two arguments: 1) which index to start, 2) how many characters

substring takes two arguments: 1)which index to start, 2) which index to end

EDIT: The white space formatting was jumbled.

I think you're looking for substring()

http://www.w3schools.com/jsref/jsref_substring.asp

function confirm_ticket(idAgir,TempsEstime) {

    var str = TempsEstime;
    var strConcatenate = TempsEstime.substring(0, 2) + ":" + TempsEstime.substring(2, 2);

    alert("confirmer le temps de maintenance de " + strConcatenate + " min pour le ticket " + idAgir);
}

techonthenet.com › js › string_substring.php

JavaScript: String substring() method

This JavaScript tutorial explains how to use the string method called substring() with syntax and examples. In JavaScript, substring() is a string method that is used to extract a substring from a string, given start and end positions.