 Downgrade angular from 4 to 2
By : Sitanath Mandal
Date : March 29 2020, 07:55 AM
To fix the issue you can do As @Daniel Ormeño stated in the comments You can manually edit the dependencies like this: code :
"dependencies": {
"@angular/common": "~2.4.1",
"@angular/compiler": "~2.4.1",
"@angular/compiler-cli": "^2.4.1",
"@angular/core": "~2.4.1",
"@angular/forms": "~2.4.1",
"@angular/http": "~2.4.1",
"@angular/platform-browser": "~2.4.1",
"@angular/platform-browser-dynamic": "~2.4.1",
"@angular/platform-server": "^2.4.1",
"@angular/router": "~3.4.0",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.8",
"rxjs": "^5.0.2",
"systemjs": "0.19.40",
"zone.js": "^0.7.4"
},
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 Downgrade angularcli from @angular/cli@latest to angular-cli@1.0.0-beta.24 getting error
By : gjjones
Date : March 29 2020, 07:55 AM
like below fixes the issue Cheers... :)
I got the solution for the problem for angular-cli@1.0.0-beta.24 Peer dependencies are missing so the cli was not getting installed sometimes it was giving npm error as package.json is missing for angular-cli@1.0.0-beta.24
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 elegant way to downgrade all angular components for angular js
By : user2462639
Date : March 29 2020, 07:55 AM
may help you . If the goal is to get rid of boilerplate code, you can get list of components to upgrade, get the selector name for each component and register corresponding directive code :
function getComponents() {
// depends on how your components are organized
// for example, iterate over require.context(".", true, /\.component.ts$/);
// or return fixed array
return [ColorPickerComponent, FileSelectComponent];
}
function getComponentSelector(component) {
// if you don't need AOT
return toCamelCase(component.__annotations__[0].selector);
// if you do need it
let name: string = component.name;
const suffix = 'Component';
if (name.endsWith(suffix)) {
name = name.substr(0, name.length - suffix.length);
}
return uncapitalize(name);
}
function toCamelCase(selector: string) {
const splitted = selector.split('-');
for (let i = 1; i < splitted.length; i++) {
splitted[i] = capitalize(splitted[i]);
}
return splitted.join('');
}
function capitalize(name: string) {
return name.charAt(0).toUpperCase() + name.slice(1);
}
function uncapitalize(name: string) {
return name.charAt(0).toLowerCase() + name.slice(1);
}
downgradeComponents(angular.module('kn-components'));
function downgradeComponents(module: ng.IModule) {
const components = getComponents();
for (const component of components) {
const selector = getComponentSelector(component);
module.directive(selector, downgradeComponent({ component }));
}
}
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I want to downgrade Angular CLI globally as my project is using older version of it
By : Sravan Kumar
Date : March 29 2020, 07:55 AM
I wish this helpful for you You can downgrade your global angular-cli installation to eg. 1.0.0-beta.14 by issuing:
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Angular 2 Downgrade Component with Output Parameter to Angular 1
By : Tania
Date : March 29 2020, 07:55 AM
help you fix your problem I found a solution for my problem as follows: define my components inputs and ouputs: code :
directive('downgradeEmployeeSelector', downgradeComponent({
component: EmployeeSelectorComponent,
inputs: ['selectedEmployeesIds', 'multiSelect', 'required'],
outputs: ['isValid', 'selectedEmployeesIdsChange']
})
<downgrade-employee-selector name="empSelector" [selected-employees-ids]="vm.selectedEmployeeIds" [required]="true" (is-valid)="vm.validateEmployeeSelector($event)"></downgrade-employee-selector>
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code :
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