Now that you know about JavaScript Substring, check out the Web Developer Course by Edureka. I hope you understood how it is used to exact any part of a string. With this, we have come to the end of our JavaScript Substring blog. It excludes end index character or up to the end of the string if end index not provided It returns partial-string between start index & end index. It has two parameters such as startIndex and Length JavaScript substr() method returns part of the string starting from an index and number of characters after the start index. It excludes the endIndex character or up to the end of the string. JavaScript substring() method returns part of the string between startIndex & endIndex.
All of these do not change the original string. These methods are used to extract parts of a string and return the extracted parts in a new string. Now that you know what is substring and how it works, let’s move on with our JavaScript Substring article and discuss the differences between substring, substr, and slice. Var anyString1 = anyString.substring(anyString.length - 5) //Displays last 5 characters This method is easier to remember as you don’t need to know the starting and ending indices. The substring() method and length property are used together to extract the last characters of a particular string. The length property is used to get the length of a string. Let’s take an example and see how the substring() function works. This substring method returns the new sub-string based on given parameters. indexB(Ending Index) − Integer between 0 and the length of the string.indexA(Starting Index) − Integer between 0 and one less than the length of the string.It is used to return a portion of the string, starting at the specified index and extending for a given number of characters afterward. The substring() is an inbuilt function in JavaScript which returns a part of the given string from start index to end index. But, “ Edureka Courses” is not a substring as it is a subsequence or the generalization of the string. It is a contiguous sequence of characters within a string.įor example, “ Welcome to Edureka” is a substring of the string “ Welcome to Edureka Online Courses“. This JavaScript Substrig article will provide in-depth knowledge about the same in the following sequence:Ī substring is a subset of another string.
The JavaScript Substring, Substr and Slice methods are used for extracting strings from a larger one. JavaScript provides different ways for parsing and extracting data. Manipulating data is an integral part of any web application.
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