Series.str.substr

Obtain the substring from a String element in a Series, by specifying the number of string to obtain starting from a specific index.

danfo.Series.str.substr(startIndex, num, options) [source]

ParametersTypeDescriptionDefault

startIndex

Number

specify the index to start obtaining the substring

0

num

Number

The number of character to obtain starting from the startIndex

1

options

Object

inplace: Whether to perform the operation in-place or not.

{

inplace: false

}

Returns:

**** return Series

Example

Obtain substring( containing 4 characters) starting from the third character (2nd index).

const dfd = require("danfojs-node")

let data = ['lower part ', ' CAPITALS city', ' this is a sentence', '  SwAp CaSe']
let sf = new dfd.Series(data)
sf.str.substr(2, 4).print()
╔═══╤══════════════════════╗
║   │ 0
╟───┼──────────────────────╢
0 │ wer                  ║
╟───┼──────────────────────╢
1APIT
╟───┼──────────────────────╢
2 │ his                  ║
╟───┼──────────────────────╢
3 │ SwAp                 ║
╚═══╧══════════════════════╝

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