I trying the ethereumjs-util in react-native , first ethUtil.privateToPublic work fine, then when use ethUtil.publicToAddress will getting this error TypeError: Cannot read property 'call' of undefined , I trace the error actually come from Keccak.
Then I try Keccak it self :
const createKeccakHash = require('keccak');
console.log(createKeccakHash('keccak256').digest().toString('hex'));
also getting the same error TypeError: Cannot read property 'call' of undefined
You can try use js-sha3 I know that it maybe your module doesn't support React Native.
keccak256 = require('js-sha3').keccak256;
var bytes = keccak256.digest();
console.log(bytes);
Related
In the code below I receive the error: TypeError: Cannot read property 'split' of undefined
var _dbCreds = process.env.DB_CREDENTIALS
.split("|")
.map(c => c.replace('\|', '|'));
Why?
In nodejs you can read the system's environment-variables using the process.env object. You can read more here.
It seems that you haven't set you enviroment variable and that's so, your program fails to find split function.
To feel more safe when your app is bootstrapping I suggest you to write your code (more or less) like this:
var _dbCreds = process.env.DB_CREDENTIALS;
var _dbCredsSplitted;
if (_dbCreds) {
_dbCredsSplitted = _dbCreds
.split("|")
.map(c => c.replace('\|', '|'));
} else {
throw new Error("Database credentials not found");
}
I am trying to use the Overlay Manager for Autodesk Forge Viewer V7. When calling overlayManager.addScene('my_scene') I get the following error:
Uncaught TypeError: Cannot read property 'hasOwnProperty' of undefined.
It doesn't seem like overlayScenes is ever defined, but addScene calls this.impl.overlayscenes.hasOwnProperty
I created an extension and called the following code in the constructor of my extension:
function ClickableMarkup() {
Autodesk.Viewing.Extension.call(this, viewer, options);
let overlayManager = new
Autodesk.Viewing.OverlayManager();
// Add scene -> Throws Error
overlayManager.addScene('my_scene');
}
How do I fix this error?
Try pass the current Viewer's implementation object in to properly initialize the manager:
let overlayManager = new
Autodesk.Viewing.OverlayManager(viewer.impl);
I have a simple html site including CodeMirror.
https://jsfiddle.net/xsxo0xmd/
Unfortunately I keep getting this error:
Uncaught TypeError: Cannot read property 'focused' of undefined
at Yo.prepareSelection (codemirror.js:8236)
at Yo.focus (codemirror.js:8321)
at new Po (codemirror.js:7266)
at Po (codemirror.js:7248)
at fiddle.jshell.net/:61
Any idea why this error occurs?
Turns out it's just an issue of the current version.
Trying to debug a JS issue, but not having any success - trace is below.
TypeError: Cannot read property 'then' of undefined
at Object.fn (angular.min.js:937)
at l.$get.l.$digest (angular.min.js:508)
at l.$get.l.$apply (angular.min.js:522)
at HTMLLIElement.<anonymous> (angular.min.js:928)
at HTMLLIElement.x.event.dispatch (jquery-1.11.0.min.js:10)
at HTMLLIElement.x.event.add.v.handle (jquery-1.11.0.min.js:10)
Issue is that the code generating the error does not include 'then' - I'm removing objects from an array, the error throws when the last object is removed but the app continues to function correctly. Wondering if it's just an internal Angular error that I can ignore?
How can I better trace the cause?
Updated ngAnimate module, problem gone.
I am having some issues with my website vertolanguages.com
I have installed ninja forms and the modal form addon and it works on some pages: http://vertolanguages.com/how-it-works/
but not on others: http://vertolanguages.com/pricing/
The error found is:
Uncaught TypeError: Cannot read property 'split' of undefined
The error is on line 184 of js_composer_front.js
ver = jQuery.ui ? jQuery.ui.version.split('.') : '1.10',
Does anybody have any suggestions? Many thanks in advance
jQuery.ui.version is undefined, your problem lies elsewhere. You can't call a function on an undefined object. A more proper way of calling this would be:
ver = jQuery.ui.version ? jQuery.ui.version.split('.') : '1.10',