如何比较集合中多个值？

Question

我做了如下比较：

var searchValue = 'Apple'
var searchValue2 = 'Orange'
var index = $scope.sEntitiesListTest.findIndex(x => x.ItemText === searchValue);

我可以比较多个值，例如

var index = $scope.sEntitiesListTest.findIndex(x => x.ItemText === searchValue && x => x.ItemValue = searchValue2);

Answer 1

在第二个比较中，您没有箭头功能（=>）。另外，您错误地使用赋值运算符（=）而不是同情运算（==或===）：

var EntitiesListTest = [{ItemText: "Test Text", ItemValue: "Test Value"},{ItemText: "Apple", ItemValue: "Orange"}]
var searchValue = 'Apple';
var searchValue2 = 'Orange';
var index = EntitiesListTest.findIndex(x => x.ItemText === searchValue && x.ItemValue == searchValue2); 
console.log(index);