Extract parts of a string:
The result of res will be:
More "Try it Yourself" examples below.
The substr() method extracts parts of a string, beginning at the character at the specified position, and returns the specified number of characters.
Tip: To extract characters from the end of the string, use a negative start number (This does not work in IE 8 and earlier).
Note: The substr() method does not change the original string.
Method | |||||
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substr() | Yes | Yes | Yes | Yes | Yes |
Parameter | Description |
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start | Required. The position where to start the extraction. First character is at index 0 |
length | Optional. The number of characters to extract. If omitted, it extracts the rest of the string |
Return Value: | A new String, containing the extracted part of the text. If length is 0 or negative, an empty string is returned |
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JavaScript Version: | 1.0 |
Begin the extraction at position 2, and extract the rest of the string:
The result of res will be:
Extract only the first character:
The result of res will be:
Extract only the last character:
The result of res will be: