Cannot read 'length' property for a defined object

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8 Answers

definedcannotobjectlengthproperty
90%

When I write to my database, I get the following error,,ERROR TypeError: Cannot read property ‘length’ of undefined,I did the following and there were no errors but it didn’t write to the database:,I’m trying to write to the database

Example_snippet/controller/utility/_defined.js/ this.route.queryParams.subscri. . .
this.route.queryParams.subscribe(params => {

   const checkoutRef = this.db.list('cart_checkouts');
   var i;
   var myObject;
   for (i = 0; i < this.myObject.length; i++) {
      checkoutRef.push({
         checkoutProductName: this.myObject[i].product_name,
         checkoutProductPrice: this.myObject[i].product_price,
         checkoutQuantity: this.myObject[i].quantity,
         checkoutThumbnail: this.myObject[i].thumbnail
      });
   }
});
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88%

I tried to change check at fastify/lib/route,js:418 - add reply

Example_snippet/controller/utility/_defined.js/ \app\node_modules\fastify\lib\. . .
\
app\ node_modules\ fastify\ lib\ route.js: 437
if (err || i === functions.length) {
   ^

   TypeError: Cannot read property 'length' of undefined
   at next(\app\ node_modules\ fastify\ lib\ route.js: 437: 32)
   at preParsingHookRunner(\app\ node_modules\ fastify\ lib\ route.js: 472: 3)
   at runPreParsing(\app\ node_modules\ fastify\ lib\ route.js: 419: 5)
   at Object.routeHandler[as handler](\app\ node_modules\ fastify\ lib\ route.js: 379: 7)
   at Router.lookup(\app\ node_modules\ find - my - way\ index.js: 339: 14)
   at Server.emit(events.js: 315: 20)
   at parserOnIncoming(_http_server.js: 874: 12)
   at HTTPParser.parserOnHeadersComplete(_http_common.js: 126: 17)
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72%

Typeerrors generate when an operation cannot be performed, When they are triggered with the

Example_snippet/controller/utility/_defined.js/ function readingErrorsAreImpor. . .
function readingErrorsAreImportant(a) {
   if (a.length === 5) {
      return "equals five"
   } else if (a.length > 5) {
      return "Greater than five"
   } else {
      return "Less than five"
   }
}
console.log(readingErrorsAreImportant())
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65%

first you need to know the property you are going define, to know that, get developer mode on that form and check for fields that begins with 'property', properties are usually accounts, in res,partner we also have the price-lists

Example_snippet/controller/utility/_defined.js/ if (! no_recurse) { va. . .
if (!no_recurse) {
   var dataset = new instance.web.DataSetStatic(this, this.field.relation, self.build_context());
   this.alive(dataset.name_get([self.get("value")])).done(function(data) {
      self.display_value["" + self.get("value")] = data[0][1];
      self.render_value(true);
   });
}
Step 2 continued with if (! no_recurse) { va. . .
if (!no_recurse) {
   var dataset = new instance.web.DataSetStatic(this, this.field.relation, self.build_context());
   this.alive(dataset.name_get([self.get("value")])).done(function(data) {
      if (typeof data[0] != "undefined" && data[0] != null && data[0].length > 0) {
         self.display_value["" + self.get("value")] = data[0][1];
         self.render_value(true);
      } else {
         return false;
      }
   });
}
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75%

Example_snippet/controller/utility/_defined.js/ npm install -g npm // JUST UPD. . .
npm install - g npm
// JUST UPDATE NPM //
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40%

This error indicates that our code expects to have an object with a length property, but that object was not present, length is commonly used on string and array, but a custom object could also have this property

Example_snippet/controller/utility/_defined.js/ fetch({ protocol: "https", . . .
fetch({
   protocol: "https",
   hostname: "example.com",
   path: "/foo",
   toString: function() {
      return `${this.protocol}://${this.hostname}${this.path}`;
   }
});
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22%

It's even simpler: just use dataSrc:'' option in the ajax defintion so dataTable knows to expect an array instead of an object:,Use default format or use ajax,dataSrc option to define data property containing table data in Ajax response (data by default)

Example_snippet/controller/utility/_cannot.js/ $('#pos-table2').DataTable. . .
    $('#pos-table2').DataTable({
       processing: true,
       serverSide: true,
       ajax: {
          url: "pos.json",
          dataSrc: ""
       }
    });
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60%

The id of the input seems is not WallSearch, Maybe you're confusing that name and id

Example_snippet/controller/utility/_cannot.js/ function walkmydog() { //w. . .
function walkmydog() {
   //when the user starts entering
   var dom = document.getElementById('WallSearch');
   if (dom == null) {
      alert('sorry, WallSearch DOM cannot be found');
      return false;
   }

   if (dom.value.length == 0) {
      alert("nothing");
   }
}

if (document.addEventListener) {
   document.addEventListener("DOMContentLoaded", walkmydog, false);
}