Hey,I am new to ionic framework.I want to create a parallax effect on my page i have done all possible things to clear the error but i can’t able to clear this error.Help me out from this run time error
my code is
import { Directive } from '@angular/core';
import { ElementRef, Renderer,Component, OnInit} from '@angular/core';
export class ParallaxHeader {
header : any;
headerHeight: any;
translateAmt: any;
scaleAmt : any;
content: any;
constructor(public element: ElementRef,public renderer: Renderer) {
this.ngOnInit(this.content);
}
ngOnInit(content){
content = this.element.nativeElement.getElementsByClassName('scroll-content')[0];
this.header = content.getElementsByClassName('header-image')[0]; let mainContent = content.getElementsByClassName('main-content')[0];
this.headerHeight = this.header.clientHeight;
this.renderer.setElementStyle(this.header, 'webkitTransformOrigin', 'center bottom'); this.renderer.setElementStyle(this.header, 'background-size', 'cover'); this.renderer.setElementStyle(mainContent, 'position', 'absolute');
}