JavaScript Substr
substr() returns a portion of a string starting at a given index and spanning a given length. It is a legacy method (prefer slice() in new code) but you will still meet it in the wild.
Syntax
str.substr(start, length)Examples
| Input | Arguments | Output |
|---|---|---|
| "hello" | 1, 3 | "ell" |
Gotchas
- substr() is deprecated. Use slice() or substring() instead.
Try it live
Type your input and see Substr transform it instantly.
Want to go further? Chain Substr with other functions, pipe one output into the next and watch your data transform in the visual Playground.