<div ng-if="vm.isProgressBarShowing()" qa-value="{"label": 90,"percentage" :0.9}"
qa-id="jss-score" eo-round-progress="" round-progress-model="vm.roundProgressData"
round-progress-width="210" round-progress-height="210" round-progress-outer-circle-width="15"
round-progress-outer-circle-radius="95" round-progress-label-font="40pt Gotham SSm" class="ng-scope"><canvas width="210" height="210" class=""></canvas></div>

これから一行目のqa-valueの90を正規表現でstringを解析する方法以外で取り出す方法ってありますか?
obj.qa-valueとかobj.qa-value.labelではとりだせないのですが