lodash/lodash

Mar 15, 2017
jdalton Remove `toString` coercion method use.
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43 lines (39 sloc) 1.18 KB
      
        import castSlice from './.internal/castSlice.js'
      
        import hasUnicode from './.internal/hasUnicode.js'
      
        import isRegExp from './isRegExp.js'
      
        import stringToArray from './.internal/stringToArray.js'
      
        /** Used as references for the maximum length and index of an array. */
      
        const MAX_ARRAY_LENGTH = 4294967295
      
        /**
      
         * Splits `string` by `separator`.
      
         *
      
         * **Note:** This method is based on
      
         * [`String#split`](https://mdn.io/String/split).
      
         *
      
         * @since 4.0.0
      
         * @category String
      
         * @param {string} [string=''] The string to split.
      
         * @param {RegExp|string} separator The separator pattern to split by.
      
         * @param {number} [limit] The length to truncate results to.
      
         * @returns {Array} Returns the string segments.
      
         * @example
      
         *
      
         * split('a-b-c', '-', 2)
      
         * // => ['a', 'b']
      
         */
      
        function split(string, separator, limit) {
      
          limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0
      
          if (!limit) {
      
            return []
      
          }
      
          if (string && (
      
                typeof separator == 'string' ||
      
                (separator != null && !isRegExp(separator))
      
              )) {
      
            if (!separator && hasUnicode(string)) {
      
              return castSlice(stringToArray(string), 0, limit)
      
            }
      
          }
      
          return string.split(separator, limit)
      
        }
      
        export default split
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lodash/lodash

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