fill.js 288 B

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  1. var isUndef = require('./isUndef');
  2. exports = function(arr, val, start, end) {
  3. var len = arr.length;
  4. if (!len) return [];
  5. if (isUndef(end)) end = len;
  6. if (isUndef(start)) start = 0;
  7. while (start < end) arr[start++] = val;
  8. return arr;
  9. };
  10. module.exports = exports;