如何比较集合中的多个值？

Question

我做的对比如下：

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

我可以比较多个值吗，比如

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

Answer 1

你没有在第二次比较中使用箭头函数(=>)。您还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);

如何比较集合中的多个值？

How can I do a comparison of more than one value in a collection?

javascript

comparison-operators