针对你遇到的错误信息 "uncaught typeerror: failed to construct 'formdata': parameter 1 is not of type",以下是对该问题的详细分析和解答: 1. 分析错误信息 错误信息表明,在尝试构造一个 FormData 对象时,提供的第一个参数不符合期望的类型。FormData 对象通常用于构造一组键值对,表示表单字段和它们的值,它需...
and also have error: TypeError: Failed to execute 'replaceChild' on 'Node': parameter 1 is not of type 'Node'. With stack trace at TypeError (native) at Object.t.widget.sendDataRenderingRequest (http://localhost:63599/Content/_components/syncfusion/js/web/ej.web.all....
plupload 上传预览 Failed to execute 'readAsDataURL' on 'FileReader': parameter 1 is not of type 'Blob' plupload 上传图片预览,想着在FileAdded中做上传图片预览,代码如下。没想到readAsDataURL报错了。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FilesAdded:function(up, files) { // 图片预览 for(v...
vartrs=otc.parentNode.appendChild(tt); 未捕获类型错误:未能在“节点”上执行“Append Child”:参数1不是“节点”类型。 otc.parentNode.appendChild('tr'); 解析:appendChild()需要传入的是一个tr的对象,而不是tr的字符串. 正确如下: functionrender(){ for(leti=0; i<data.length; i++){ vardata=xh00...
'The input is not a valid Base-64 string' ERROR 'type' does not contain a definition for 'length' 'Word.Application' is not defined "aspnet_compiler.exe" exited with code 1 "Cannot create ActiveX Component" "Exception from HRESULT: 0x800A03EC" Unable to open excel file "Failed to c...
functiondoes_not_spit_out_a_value(){console.log("I don't spit out a value.");}functiondoes_spit_out_a_value(){console.log("I do spit out a value");return"This is a value";} A value can be any data type, in the case above, it is a string....
TypeError: Failed to execute 'readAsText' on 'FileReader': parameter 1 is not of type 'Blob' Using angular Hari Y1Reputation point Oct 6, 2022, 5:14 PM HTML Page: component.ts onChange($event: any): void { let files = $event.srcElement.files; if (this.isValidCSVFile(fi...
[Vuewarn]:Errorinv-onhandler:"TypeError: Failed to execute 'readAsDataURL' on 'FileReader': parameter 1 is not of type 'Blob'." 关键代码如下: test(file){constfr =newFileReader(); fr.readAsDataURL(file); fr.onload=function(){console.log(fr.result); ...
Hi everybody, I'm trying to add the swiper script to my web app and i'm encoutering this error : Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'. swiper.jquery.js:1588 s.getTrans...
Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'. I have the following code: <v-map :zoom="zoom" :center="center"> <v-tilelayer :url="url" :attribution="attribution"></v-tilelayer> <v-marker v-for="marker in markers" :key="marker.id" :visible="ma...