9 lines
350 B
JavaScript
9 lines
350 B
JavaScript
var makeString = require('./helper/makeString');
|
|
var toPositive = require('./helper/toPositive');
|
|
|
|
module.exports = function startsWith(str, starts, position) {
|
|
str = makeString(str);
|
|
starts = '' + starts;
|
|
position = position == null ? 0 : Math.min(toPositive(position), str.length);
|
|
return str.lastIndexOf(starts, position) === position;
|
|
};
|