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我正在开发一款内置搜索功能的应用程序。但是，当我在模拟器（还有运行Android 5.1的Nexus 7（2012）平板电脑）上搜索Android 5.1或更低版本时，出现错误，说明“undefined不是函数”，它位于迭代的第一行通过它必须搜索的列表。 Whyis在所有Android版本上无法正常工作？自定义搜索功能不适用于Android 5.1及更低版本
这里是我的代码：
controllers.js
$scope.vacaturesZoeken = function() {
// Variable is value of search box
var zoekterm = document.getElementById('search_id').value;
// Check whether there is a proper search term in the variable
if (zoekterm.length === 0 || zoekterm.length === 1) {
// Variable is null, this will be used to check in the function
zoekterm = null;
}
// Search function
Vacatures.zoek($scope, zoekterm);
}
services.js
// Defining search function
zoek: function($VacatureZoekLijstscope, zoekterm) {
// Setting variable for found items to 0
searched.length = 0;
// For every item in vacatures
for (var i = 0; i < vacatures.length; i++) {
// When the box is checked to only search for location
if (document.getElementById("locatie_check").checked === true) {
// Here is where is checked whether the variable is null
if (zoekterm === null) {
return false;
}
// When the searchterm is in the location property of an item
else if (vacatures[i].locatie.toLowerCase().includes(zoekterm.toLowerCase())) {
// Add item to variable
searched.push(vacatures[i]);
}
}
谁能告诉我什么是使用这个Android装置上的5.1版本脚麻或更低？提前致谢！