Method indexOfSlice

src/ArrayUtil.js:155–169

* Returns the index of the first occurrence of the given slice. * @param {array} array Haystack * @param {array} slice Needle slice elements * @param {number} [fromIndex=0] Index at which to begin searching * @return {number} Index of the first slice occurance or -1 if there is none

(array, slice, fromIndex = 0)

   * @return {number} Index of the first slice occurance or -1 if there is none
   */
  static indexOfSlice (array, slice, fromIndex = 0) {
    if (slice.length === 0) {
      return -1
    }
    let i = -1
    let j = fromIndex - 1
    // Find the next occurrence of the first element
    while (i === -1 && (j = array.indexOf(slice[0], j + 1)) !== -1) {
      // Compare slice
      if (this.isEqual(array.slice(j, j + slice.length), slice)) {
        i = j
      }
    }
    return i
  }

  /**
   * Finds all occurences of the given slice inside a target array and replaces