Series.str.startsWith

Test whether a string begins with specified characters

danfo.Series.str.startsWith(str, options) [source]

Parameters	Type	Description	Default
str	string	the character(s) to check	""
options	Object	inplace: Whether to perform the operation in-place or not.	{ inplace: false }

Returns: Series (Boolean element)

Examples

Node

const dfd = require("danfojs-node")

let data = ['lower', 'CAPITALS', 'this is a sentence', 'SwApCaSe']
let sf = new dfd.Series(data)
sf.str.startsWith("S").print()

Browser

Output

╔═══╤══════════════════════╗
║   │ 0                    ║
╟───┼──────────────────────╢
║ 0 │ false                ║
╟───┼──────────────────────╢
║ 1 │ false                ║
╟───┼──────────────────────╢
║ 2 │ false                ║
╟───┼──────────────────────╢
║ 3 │ true                 ║
╚═══╧══════════════════════╝