[Vuejs]-Setting :style from method

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You are being bitten by the array caveats. Instead of assigning individual array elements (using =), use vm.$set:

getColumnWidths() {
  const _that = this;
  this.header.forEach(function(element, index) {
    _that.$set(_that.headerWidths, index, _that.$refs['head' + index][0].clientWidth)
  });
  console.log(this.headerWidths);
},
👤Roy J

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