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  1. www.geeksforgeeks.org › difference-between-substrDifference between substr() and substring() in JavaScript

    Jan 8, 2024 · The main difference is that substr () accepts a length parameter, while substring () accepts start and end indices. JavaScript str.substr () Function. The str.substr () function returns the specified number of characters from the specified index from the given string. Syntax: str.substr(start, len);

  2. stackoverflow.com › questions › 3745515What is the difference between substr and substring?

    Sep 19, 2010 · The main difference is that. substr() allows you to specify the maximum length to return. substring() allows you to specify the indices and the second argument is NOT inclusive. There are some additional subtleties between substr() and substring() such as the handling of equal arguments and negative arguments.

  3. masteringjs.io › tutorials › fundamentalsSubstring vs Substr vs Slice in JavaScript - Mastering JS

    • String#Substring
    • String#Substr
    • String#Slice
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    The substring() function is the most common way to get a substring in JavaScript. It takes two parameters: indexStart and indexEnd. It returns the portion of the string that starts at indexStart and ends the character immediately preceding indexEnd. For example: If you don't specify indexEnd, the substring() function returns the rest of the string ...

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    The substr() function is also common, but it is considered a "legacy function" in Mozilla's docs. You shouldn't use it when writing new code, but you may see it in existing JavaScript projects. The key difference between substring() and substr() is that substr() has a different 2nd parameter. The first parameter to substr() is start, and the 2nd is...

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    The slice() function is less common than substring() and substr(). However, it has the best aspects of both substring() and substr(). Like substring(), the slice() function takes the start and end indices as parameters, and is not considered a legacy function. Like substr(), the slice()function supports negative indices. For example: The slice()fun...

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  4. stackabuse.com › bytes › difference-between-substrDifference Between substr() and substring() in JavaScript

    Sep 13, 2023 · At first glance, they might seem identical - both are used to extract parts of a string. However, they have subtle differences in the way they work. This Byte aims to shed light on these two methods, their differences, and when to use each. substr ()

  5. developer.mozilla.org › String › substringString.prototype.substring() - JavaScript | MDN - MDN Web Docs

    Jun 4, 2024 · There are subtle differences between the substring() and substr() methods, so you should be careful not to get them confused. The two parameters of substr() are start and length , while for substring() , they are start and end .

  6. www.freecodecamp.org › news › javascript-substringJavaScript Substring Examples - Slice, Substr, and Substring ...

    Mar 22, 2020 · You can see the difference here: the substr( ) method expects the second parameter as a length instead of an endIndex: In this example, it basically counts 5 characters starting with the given startIndex and returns them as a substring.

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  8. johnkavanagh.co.uk › articles › javascript-stringString Manipulation: Substring () vs. Substr () in JS, by ...

    How Does It Work? The substring() method extracts characters from indexStart up to, but not including, indexEnd. If indexEnd is less than indexStart, substring() will swap the two arguments around (effectively working backwards). An example in code. const str = 'Kavanagh'; const sub1 = str.substring(0, 3); console.log(sub1); //=> 'Kav'