series.str.tolowercase.md

description
Converts all characters to lower case.

Series.str.toLowerCase

danfo.Series.str.toLowerCase(options) [source]

Parameters	Type	Description	Default
options	Object	inplace: Whether to perform the operation in-place or not.	{ inplace: false }

Example

Convert all characters in each string element to small letter

{% tabs %} {% tab title="Node" %}

const dfd = require("danfojs-node")

let data = ['LOWER BOY', 'CAPITALS', 'SENTENCE', 'SWAPCASE']
let sf = new dfd.Series(data)
sf.str.toLowerCase().print()

{% endtab %}

{% tab title="Browser" %}

{% endtab %} {% endtabs %}

{% tabs %} {% tab title="Output" %}

╔═══╤══════════════════════╗
║   │ 0                    ║
╟───┼──────────────────────╢
║ 0 │ lower boy            ║
╟───┼──────────────────────╢
║ 1 │ capitals             ║
╟───┼──────────────────────╢
║ 2 │ sentence             ║
╟───┼──────────────────────╢
║ 3 │ swapcase             ║
╚═══╧══════════════════════╝

{% endtab %} {% endtabs %}