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39 lines
1017 B
39 lines
1017 B
var baseClamp = require('./_baseClamp'), |
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baseToString = require('./_baseToString'), |
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toInteger = require('./toInteger'), |
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toString = require('./toString'); |
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/** |
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* Checks if `string` starts with the given target string. |
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* |
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* @static |
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* @memberOf _ |
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* @since 3.0.0 |
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* @category String |
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* @param {string} [string=''] The string to inspect. |
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* @param {string} [target] The string to search for. |
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* @param {number} [position=0] The position to search from. |
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* @returns {boolean} Returns `true` if `string` starts with `target`, |
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* else `false`. |
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* @example |
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* |
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* _.startsWith('abc', 'a'); |
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* // => true |
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* |
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* _.startsWith('abc', 'b'); |
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* // => false |
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* |
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* _.startsWith('abc', 'b', 1); |
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* // => true |
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*/ |
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function startsWith(string, target, position) { |
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string = toString(string); |
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position = position == null |
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? 0 |
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: baseClamp(toInteger(position), 0, string.length); |
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target = baseToString(target); |
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return string.slice(position, position + target.length) == target; |
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} |
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module.exports = startsWith;
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