1
我有这样的:显示JSON对象模板角2
stanservice.categoryDetail(this.params.get('id'))
.then((data) => {
this.category = JSON.stringify(data.res.rows[0]);
console.log(JSON.stringify(data.res.rows[0]));
})
.catch((error) => {
console.log("Error message", error.err);
});
控制台日志返回此:
{"id":6,"name":"destiny","note":"nice","type":"income"}
然后我能在我的模板,显示this.category
就象这样:
{{ category }}
返回顶部
{"id":6,"name":"destiny","note":"nice","type":"income"}
然而,当我尝试这样做
{{ category.name }}
我得到这个错误显示对象的值:
EXCEPTION: Error: Uncaught (in promise): EXCEPTION: TypeError: Cannot read property 'name' of undefined in [
{{ category.name }}
in [email protected]:18]
ORIGINAL EXCEPTION: TypeError: Cannot read property 'name' of undefined
ORIGINAL STACKTRACE:
TypeError: Cannot read property 'name' of undefined
at AbstractChangeDetector.ChangeDetector_CategorydetailPage_0.detectChangesInRecordsInternal (viewFactory_CategorydetailPage:67:28)
at AbstractChangeDetector.detectChangesInRecords (http://localhost:8100/build/js/app.bundle.js:13535:18)
at AbstractChangeDetector.runDetectChanges (http://localhost:8100/build/js/app.bundle.js:13512:14)
at AbstractChangeDetector._detectChangesInViewChildren (http://localhost:8100/build/js/app.bundle.js:13612:18)
at AbstractChangeDetector.runDetectChanges (http://localhost:8100/build/js/app.bundle.js:13516:14)
at AbstractChangeDetector.detectChanges (http://localhost:8100/build/js/app.bundle.js:13501:73)
at ChangeDetectorRef_.detectChanges (http://localhost:8100/build/js/app.bundle.js:14402:73)
at ViewController.willEnter (http://localhost:8100/build/js/app.bundle.js:46071:22)
at NavController._postRender (http://localhost:8100/build/js/app.bundle.js:44385:30)
at http://localhost:8100/build/js/app.bundle.js:44333:27
ERROR CONTEXT:
[object Object]
同样的错误上面'错误:未捕获的(在承诺):异常:类型错误:无法在[ {{category.name读取未定义的属性 '名' }}' – Rexford
如果你使用console.log(data.res.rows [0])而不是'console.log(JSON.stringify(data.res.rows [0]))'',你会得到什么?你在控制台中看到一个对象或字符串吗?一个对象会让你与它进行交互。一个字符串不会。 – dewd
'Object {id:3,name:“ok”,note:“notes”,type:“expense”}' – Rexford