javascript - Angular .js : reference the current model by short variable name

Question

假设我使用长表达式(例如

)绑定(bind)到模型

 <ul class="container" ui-sortable  ng-model="cssRules.categories['sd-text-highlight-    color']" ng-class="{selected: cssRules.categories['sd-text-highlight-color'] ==    selectedCategory}" ng-click="selectCategory(cssRules.categories['sd-text-highlight-color'])">

有没有办法不重复 cssRules.categories['sd-text-highlight-color'],

然后使用某些关键字或分配的变量名称绑定(bind)到当前引用的模型？

Answer 1

使用 ng-init 尝试一下:

 <ul 
     class="container"
     ui-sortable
     ng-init="mymodel = cssRules.categories['sd-text-highlight-color']"
     ng-model=""
     ng-class="{selected: mymodel  ==    selectedCategory}"
     ng-click="selectCategory(mymodel )"
>

希望这有帮助