I tried to run a project downloaded from github. Unfortunately, during npm install the following warnings were shown. I tried to change the version based on this question. However, I had a problem, because some packages require multiple versions other packages. Consider these two lines: So, installing some packages causes the list of dependencies to … Read more
The hidden property can be used for that See also https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/hidden issues hidden has some issues though because it can conflict with CSS for the display property. See how some in Plunker example doesn’t get hidden because it has a style set. (This might behave differently in other browsers – I tested with Chrome 50) workaround You can fix it by adding To a … Read more
The key is to have both global and local Angular-cli versions the same. Let’s say we want to fixate it to eg. 1.0.0-beta.15. So you can try to fixate the version in npm install -g [email protected] and in your package.json fixate it to the same version: “angular-cli”: “1.0.0-beta.15”. Then run npm install –save-dev. Currently Angular CLI can be found on NPM under @angular/cli instead of angular-cli. Here are links … Read more
You need to create a “systemjs.config.js” file and load it from index.html, like a regular script: Make sure you also include System.JS before the config script: The following script loads the first module: By default (according to your systemjs.config.js), SystemJS will look for app.js or app/main.js. In your systemjs.config.js file, you want to map the … Read more
Angular version 2+ provides several ways to add classes conditionally: type one type two and multiple option: type three type four
The problem was related to CORS. I noticed that there was another error in Chrome console: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://localhost:4200‘ is therefore not allowed access. The response had HTTP status code 422.` This means the response from backend server was missing Access-Control-Allow-Origin header even though backend nginx was configured to add … Read more
I got the same error , sometimes this issue occur and you only need to re-run the server using ng serve or whatever CLI you use , as mentioned here
Finally, I found a solution to this problem without reinstalling npm and I’m posting it because in future it will help someone, Most of the time this error occurs javascript heap went out of the memory. As the error says itself this is not a problem with npm. Only we have to do is instead … Read more
Remove the brackets from and use only This, because with [ ] you are trying to bind a variable, which this is not. Also notice your submit, it should be: instead of areasForm.values.