| var baseClamp = require('./_baseClamp'), |
| baseToString = require('./_baseToString'), |
| toInteger = require('./toInteger'), |
| toString = require('./toString'); |
| |
| /** |
| * Checks if `string` starts with the given target string. |
| * |
| * @static |
| * @memberOf _ |
| * @since 3.0.0 |
| * @category String |
| * @param {string} [string=''] The string to inspect. |
| * @param {string} [target] The string to search for. |
| * @param {number} [position=0] The position to search from. |
| * @returns {boolean} Returns `true` if `string` starts with `target`, |
| * else `false`. |
| * @example |
| * |
| * _.startsWith('abc', 'a'); |
| * // => true |
| * |
| * _.startsWith('abc', 'b'); |
| * // => false |
| * |
| * _.startsWith('abc', 'b', 1); |
| * // => true |
| */ |
| function startsWith(string, target, position) { |
| string = toString(string); |
| position = position == null |
| ? 0 |
| : baseClamp(toInteger(position), 0, string.length); |
| |
| target = baseToString(target); |
| return string.slice(position, position + target.length) == target; |
| } |
| |
| module.exports = startsWith; |