Javascript 将JSON对象转换为knockout observable在IE8中不起作用,但在所有其他浏览器中都起作用
我有以下目标Javascript 将JSON对象转换为knockout observable在IE8中不起作用,但在所有其他浏览器中都起作用,javascript,jquery,knockout.js,internet-explorer-8,knockout-mapping-plugin,Javascript,Jquery,Knockout.js,Internet Explorer 8,Knockout Mapping Plugin,我有以下目标 { "section_name": "Basic Info", "data": [ { "jw_fullname": "John", "jw_email": "smith@gmail.com", "jw_phone": "12365489", "jw_website": "www.rcv.com", "jw_address1": "Test",
{
"section_name": "Basic Info",
"data": [
{
"jw_fullname": "John",
"jw_email": "smith@gmail.com",
"jw_phone": "12365489",
"jw_website": "www.rcv.com",
"jw_address1": "Test",
"jw_address2": "T test",
"jw_address3": "tesst,",
"mtheme": "metro",
"dtheme": "Bold"
}
],
"key": "basicinfo",
"prevent": true
}
我希望里面的一切都能被观察到。因此,我将“数据”传递到“convertToObservable”函数中,使其中的所有内容都变得可观察
function convertToObservable(section)
{
var newSection = [];
$.each(section, function (i, obj) {
var newObj = {};
Object.keys(obj).forEach(function (key) {
console.log(key);
newObj[key] = ko.observable(obj[key]);
});
newSection.push(newObj);
});
return newSection;
}
这使得它内部的一切都可以观察到,并且在除IE8之外的所有浏览器中都能完美工作
在IE8中,函数“convertToObservable”中的这一行出现故障
Object.keys(obj).forEach(function (key) {
我只在IE8“对象不支持此属性或方法”中遇到此错误
有没有办法让它在IE8中工作 如前所述,对象.键
在IE8中不可用。一个简单的for-in循环应该适合您。只需确保使用hasOwnProperty
for (var key in obj){
if (obj.hasOwnProperty(key)){
newObj[key] = ko.observable(obj[key]);
}
}
IE8中不支持Object.keys 从
//来自https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
如果(!Object.keys){
Object.keys=(函数(){
"严格使用",;
var hasOwnProperty=Object.prototype.hasOwnProperty,
HasdontenUnbug=!({toString:null}).propertyIsEnumerable('toString'),
多特南=[
“toString”,
“Tolocalesting”,
“价值”,
“hasOwnProperty”,
“isPrototypeOf”,
“propertyIsEnumerable”,
“构造函数”
],
dontEnumsLength=dontEnums.length;
返回函数(obj){
如果(对象的类型!='object'&&(对象的类型!='function'| |对象===null)){
抛出新的TypeError('Object.keys在非对象上调用');
}
var结果=[],prop,i;
用于(obj中的道具){
if(hasOwnProperty.call(obj,prop)){
结果:推动(支撑);
}
}
如果(hasDontEnumBug){
对于(i=0;i
// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
if (!Object.keys) {
Object.keys = (function () {
'use strict';
var hasOwnProperty = Object.prototype.hasOwnProperty,
hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
dontEnums = [
'toString',
'toLocaleString',
'valueOf',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'constructor'
],
dontEnumsLength = dontEnums.length;
return function (obj) {
if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
throw new TypeError('Object.keys called on non-object');
}
var result = [], prop, i;
for (prop in obj) {
if (hasOwnProperty.call(obj, prop)) {
result.push(prop);
}
}
if (hasDontEnumBug) {
for (i = 0; i < dontEnumsLength; i++) {
if (hasOwnProperty.call(obj, dontEnums[i])) {
result.push(dontEnums[i]);
}
}
}
return result;
};
}());
}