MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › String › startsWith
String.prototype.startsWith() - JavaScript | MDN
The startsWith() method of String values determines whether this string begins with the characters of a specified string, returning true or false as appropriate.
W3Schools
w3schools.com › Jsref › jsref_startswith.asp
JavaScript String startsWith() Method
The startsWith() method returns true if a string starts with a specified string.
07:58
Методы строк startsWith() и endsWith() в JavaScript ...
01:56
JavaScript Basics - startsWith() - YouTube
JavaScript startsWith() & endsWith() String Functions Explained !
03:11
Javascript Basics · String · startsWith() (method) - YouTube
JavaScript StartsWith() and EndsWith() String Method
02:40
JavaScript String - startsWith() & endsWith() - YouTube
Stack Overflow
stackoverflow.com › questions › 646628 › how-to-check-if-a-string-startswith-another-string
How to check if a string "StartsWith" another string?
How would I write the equivalent of C#'s String.StartsWith in JavaScript? var haystack = 'hello world'; var needle = 'he'; haystack.startsWith(needle) == true Note: This is an old question, and as
Career Karma
careerkarma.com › blog › javascript › javascript startswith and endswith: a complete guide
JavaScript startsWith and endsWith: A Complete Guide | Career Karma
December 1, 2023 - The JavaScript startsWith() method is used to determine whether a string starts with a particular substring.
Medium
medium.com › dailyjs › string-startswith-method-in-javascript-b12ec998eb54
String startsWith() Method in JavaScript | by Samantha Ming | DailyJS | Medium
August 8, 2019 - If you ever need to check if a string begins with another string in JavaScript, use ES6’s startsWith method…
GeeksforGeeks
geeksforgeeks.org › javascript › javascript-string-startswith-method
JavaScript String startsWith() Method - GeeksforGeeks
June 11, 2026 - // JavaScript to illustrate // startsWith() method // Original string let str = 'It is a great day.'; let value = str.startsWith('great', 8); console.log(value); The code checks if the URL starts with "https://" and if the filename starts with ".js". It returns true for the URL starting with "https://" and false for the filename starting with ".js".
Scaler
scaler.com › home › topics › javascript string startswith()
JavaScript String startsWith() Method - Scaler Topics
March 4, 2024 - The startsWith() method in JavaScript is designed to determine if a string begins with specified characters.
W3Schools
w3schools.com › jsreF › jsref_startswith.asp
W3Schools.com
cssText getPropertyPriority() getPropertyValue() item() length parentRule removeProperty() setProperty() JS Conversion ... The startsWith() method returns true if a string starts with a specified string.
DEV Community
dev.to › dailydevtips1 › javascript-startswith-and-multiple-conditions-3o67
JavaScript startsWith and multiple conditions - DEV Community
December 1, 2021 - const string = 'Hi, and welcome from JavaScript'; console.log(string.startsWith('Hi')); // true console.log(string.startsWith('Hello')); // false
W3Schools
www-db.deis.unibo.it › courses › TW › DOCS › w3schools › jsref › jsref_startswith.asp.html
JavaScript String startsWith() Method
The startsWith() method determines whether a string begins with the characters of a specified string.
Can I Use
caniuse.com › mdn-javascript_builtins_string_startswith
JavaScript built-in: String: startsWith | Can I use... Support tables for HTML5, CSS3, etc
"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
Top answer 1 of 3
3
startsWith is a function, you pass the value you want to check and it will return a boolean, so
if (botmod.startsWith("Bot"))
...
}
2 of 3
2
It is a function:
If you want the string to start with Bot,
if(botmod.startsWith("Bot")){
// ...do stuff
}
or If you don't want the string to start with Bot,
if(!botmod.startsWith("Bot")){
// ...do stuff
}
However, you can only run .startsWith() on Strings.
Codecademy
codecademy.com › docs › javascript › strings › .startswith()
JavaScript | Strings | .startsWith() | Codecademy
August 8, 2023 - The .startsWith() JavaScript string method checks whether a string begins with the specified characters.
GeeksforGeeks
geeksforgeeks.org › javascript › how-to-check-if-a-string-startswith-another-string-in-javascript
JavaScript - How to Check if a String "StartsWith" Another String in JavaScript? - GeeksforGeeks
August 5, 2025 - The startsWith() method is the simplest and most efficient solution for modern JavaScript.
Vultr Docs
docs.vultr.com › javascript › standard library › string › startswith()
JavaScript String startsWith() - Check String Start
November 14, 2024 - Use startsWith() to determine if it begins with a specific substring.
TechOnTheNet
techonthenet.com › js › string_startswith.php
JavaScript: String startsWith() method
In JavaScript, startsWith() is a string method that is used to determine whether a string starts with a specific sequence of characters.
Reddit
reddit.com › r/learnjavascript › (line 7) why can't i just do this? startswith is a function anyway
r/learnjavascript on Reddit: (Line 7) Why can't I just do this? startsWith is a function anyway
December 13, 2022 - It's because startsWith is a method on String.prototype. The filter method expects a callback function as its argument.
Esdiscuss
esdiscuss.org › topic › case-insensitive-string-startswith-contains-endswith-replaceall-method
Case insensitive String startsWith, contains, endsWith, replaceAll method
February 18, 2013 - And to make it case sensitive we should add a third flag parameter matchCase like... var startsWith = str.startsWith(searchString [, position [, matchCase] ] ); var contained = str.contains(searchString [, position [, matchCase] ] ); var endsWith = str.endsWith(searchString [, position [, matchCase] ] ); Additionally we should have a String.replaceAll method right now web developers are using complex logic to achieve the same.
Educative
educative.io › answers › how-to-use-the-startswith-method-in-javascript
How to use the startsWith() method in JavaScript
The startsWith() method in JavaScript is a String method that is used to check if a particular string starts with the exact string that is passed as an argument.
MSR
rajamsr.com › home › top 5 javascript startswith() alternative methods
Top 5 JavaScript startsWith() Alternative Methods | MSR - Web Dev Simplified
January 28, 2024 - In the above example, we’re checking whether the JavaScript text begins with a "Hello" string. In this example, the input string "Hello JavaScript" starts with "Hello", so startsWith() the method returns true.