Ways to verify the presence of isBrowser in Angular 4

Question

Ways to verify the presence of isBrowser in Angular 4

Previously, isBrowser from Angular Universal could be used to determine if your page was being rendered in a browser (allowing for usage of features like localStorage) or if it was being pre-rendered on the server side.

However, it appears that angular2-universal has been deprecated and split into @angular/core, @angular/platform-server, and @angular/platform-browser.

I have searched the API documentation for Angular 4 for similar functionality and also examined the source code, but have not found what I am looking for.

Is there a different method in Angular 4 for determining if the rendering is happening in a browser? Or should I simply check if window is defined?

javascript angular typescript

Answer 1

Answer №1

import { PLATFORM_ID, Inject } from '@angular/core';
import { isPlatformBrowser} from '@angular/common';
...
export class ComponentExample {
...
    checkIfBrowser: boolean;
    constructor(
        @Inject(PLATFORM_ID) platformId: string) {
            this.checkIfBrowser = isPlatformBrowser(platformId);
            if (this.checkIfBrowser) {
                //code to be executed only in the browser environment
            }
    }
...

Answer 2

import { PLATFORM_ID, Inject } from '@angular/core';
import { isPlatformBrowser} from '@angular/common';
...
export class ComponentExample {
...
    checkIfBrowser: boolean;
    constructor(
        @Inject(PLATFORM_ID) platformId: string) {
            this.checkIfBrowser = isPlatformBrowser(platformId);
            if (this.checkIfBrowser) {
                //code to be executed only in the browser environment
            }
    }
...

Answer 3

Answer №2

To utilize the function

isPlatformBrowser(<platform id>)

, you can follow these steps:

import { isPlatformBrowser } from '@angular/common';

This code snippet will enable you to verify whether the content is being displayed in a browser.

It is worth mentioning that there is also a similar function called isPlatformServer available in the @angular/common library.

Answer 4

To utilize the function

isPlatformBrowser(<platform id>)

, you can follow these steps:

import { isPlatformBrowser } from '@angular/common';

This code snippet will enable you to verify whether the content is being displayed in a browser.

It is worth mentioning that there is also a similar function called isPlatformServer available in the @angular/common library.

Answer 5

Answer №3

Here are the steps you need to follow:

import { isPlatformBrowser } from '@angular/common';
import { Inject, PLATFORM_ID } from '@angular/core;

constructor(@Inject(PLATFORM_ID) platformId: Object){
  const isBrowser = isPlatformBrowser(this.platformId);
}

I trust this information will be useful for you:

Answer 6

Here are the steps you need to follow:

import { isPlatformBrowser } from '@angular/common';
import { Inject, PLATFORM_ID } from '@angular/core;

constructor(@Inject(PLATFORM_ID) platformId: Object){
  const isBrowser = isPlatformBrowser(this.platformId);
}

I trust this information will be useful for you:

Ways to verify the presence of isBrowser in Angular 4

Answer №1

Answer №2

Answer №3

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