https://www.geeksforgeeks.org/difference-between-substr-and-substring-in-javascript/
In JavaScript Both of the functions are used to get the specified part of the string, But there is a slight difference between them. substr () and substring () are string methods used to extract parts of a string. The main difference is that substr () accepts a length parameter, while substring () accepts start and end indices.

https://stackoverflow.com/questions/3745515/what-is-the-difference-between-substr-and-substring
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. Also note substring() and slice() are similar but not always the same.

https://masteringjs.io/tutorials/fundamentals/substring
The difference between the String#substring() and String#substr() functions is a common source of confusion. Even experienced JavaScript developers mix them up sometimes. There's also a third way to get a substring, the String#slice() function, that you may see in the wild.In this tutorial, you'll learn the difference between these 3 ways to get a substring in JavaScript.

https://stackabuse.com/bytes/difference-between-substr-and-substring-in-javascript/
substring() The substring() method, on the other hand, also extracts characters from a string between two indices. Its syntax is as follows: string.substring(indexStart, indexEnd) Both indexStart and indexEnd parameters are optional. If indexEnd is not given, characters will be extracted to the end of the string, just like with substr().. Here's an example:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substring
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.; substr()'s start index will wrap to the end of the string if it is negative, while substring() will clamp it to 0. Negative lengths in substr() are treated as zero

https://www.w3docs.com/snippets/javascript/what-is-the-difference-between-substr-and-substring.html
However, there are slight differences between subst () and substring () methods. Both functions take two parameters, but substr () takes the length of the substring to be returned, while substring takes end index (excluding) for a substring. p>The substr () method is used to get a part of the string that starts at the specified index and

https://stackoverflow.com/questions/10125488/what-is-the-different-between-substr-and-substring
Yes, substr() 's second parameter is the length of the required substring while substring() 's is a character index, a fact which is pretty trivial to find via a web search. What is less well-known is that substr() is non-standard (up to and including ECMAScript 5; ES3 and ES5 have non-normative sections on substr()) and had some bugs in older

https://johnkavanagh.co.uk/articles/javascript-string-manipulation-substring-vs-substr/
It is a common misunderstanding that substring() and substr() may seem interchangeable. Their differences are significant. String.prototype.substring() is a reliable and essential method for string operations in JavaScript. Its behaviour is distinct from String.prototype.substr(), which is a legacy method with different parameters and potential

https://www.programmingcube.com/what-is-the-difference-between-substr-and-substring-in-javascript/
Some of the most important differences are listed below: Syntax: The syntax for substr and substring is different. Substring requires two arguments (startIndex and endIndex), while substr requires two arguments (startIndex and length). End Index: The endIndex argument in substring specifies the index of the first character that you want to

https://blog.jim-nielsen.com/2019/difference-between-substr-and-substring-in-javascript/
The difference is in the second argument. The second argument to substring is the index to stop at (but not include), but the second argument to substr is the maximum length to return. It also had links to Mozilla's docs on substr and substring, which helped clarify the answer for me.

https://www.geeksforgeeks.org/difference-between-string-slice-and-string-substring-in-javascript/
Str = 'This is GeeksForGeeks'. str.slice() = This is Geeks. str.substring() = This is Geeks. Example 2:In this Example, In the case of substring () it swaps the arguments when start>stop where the slice () returns the empty string. Javascript. // Input string. let str = "This is GeeksForGeeks";

https://www.freecodecamp.org/news/javascript-substring-examples-slice-substr-and-substring-methods-in-js/
1. The substring ( ) Method. Let's start with the substring ( ) method. This method basically gets a part of the original string and returns it as a new string. The substring method expects two parameters: string.substring(startIndex, endIndex); startIndex: represents the starting point of the substring.

https://www.vitamindev.com/javascript/substr-vs-substring/
There are two JavaScript functions to extract a parts of a string: substr and substring. Both functions extracts a substring starting from an index. The difference between substr and substring is that substr extracts the substring based on its length, whereas substring extracts the substring based on its start and end indexes. Example: Outputs:

https://www.designcise.com/web/tutorial/what-are-the-differences-between-substr-and-substring-in-javascript
The main differences between substring() and substr() methods are as follows: They have different second arguments; Negative starting index has a different meaning in both; They have differences in return values if start index is greater. Please note that the substr() method is considered a legacy feature in ECMAScript and might be removed in

https://www.w3schools.com/jsref/jsref_substr.asp
Description. The substr() method extracts a part of a string. The substr() method begins at a specified position, and returns a specified number of characters. The substr() method does not change the original string. To extract characters from the end of the string, use a negative start position.

https://medium.com/swlh/whats-the-difference-between-slice-substring-and-substr-in-javascript-d410a4e0da70
substr() is slightly different; start is still the same parameter as with the previous two methods in that it's the index of the string where you want to start the substring from. However, the

https://www.tutorialspoint.com/What-is-the-difference-between-substr-and-substring-in-JavaScript
Javascript Web Development Front End Technology. The examples given above have the same output, but yes the method differs, with that the parameters too. The substring () method the second parameter is the index to stop the search, whereas the second parameter of substr () is the maximum length to return.

https://www.tutorialstonight.com/substring-in-javascript
In the above example, the substr method extracts a substring from the original string from index 1 to index 4. # Syntax substr(). The syntax of substr() method is:. string.substr(startIndex, length) Point to be noted about this method:📔💡. startIndex - It is the first parameter of the method which determines the index in the original string from where the substring is to be extracted.

https://www.edureka.co/blog/javascript-substring/
JavaScript substr () method returns part of the string starting from an index and number of characters after the start index. It has two parameters such as startIndex and Length. slice () method is similar to substring. It returns partial-string between start index & end index. It excludes end index character or up to the end of the string if

https://stackoverflow.com/questions/4546284/what-is-the-difference-between-slice-and-substr-in-javascript
1.If start equals stop, it returns an empty string, exactly like substring (). 2.If stop is omitted, slice extracts chars to the end of the string, exactly like substring (). 3.If start > stop, slice () will NOT swap the 2 arguments. 4.If either argument is greater than the string's length, either argument will use the string's length, exactly

https://stackoverflow.com/questions/15505508/what-is-the-difference-between-string-substring-and-string-subsequence
substring is a continuous part or subpart of a string. whereas. subsequence is the part of a string or sequence, that might be continuous or not but the order of the elements is maintained. For example, let's say we have the following strings: str_a="hello there". str_b="hello". str_c="ello th". str_d="hllo".

https://stackoverflow.com/questions/57130961/substring-vs-slice-vs-other
The difference between them is: The substring () method swaps its two arguments if indexStart is greater than indexEnd, meaning that a string is still returned. The slice () method returns an empty string if this is the case. If either or both of the arguments are negative or NaN, the substring () method treats them as if they were 0.