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sudeensudeen
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lazy loading for images integrated
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-4424
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‎.gitignore‎

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@@ -16,3 +16,5 @@ yarn-error.log*
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# Next.js
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/.next
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.now

‎package-lock.json‎

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‎package.json‎

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@@ -3,23 +3,24 @@
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"version": "4.0.0",
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"private": true,
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"dependencies": {
6-
"@material-ui/core": "^4.9.7",
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"@material-ui/icons": "^4.9.1",
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"@material-ui/styles": "^4.9.6",
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"@material-ui/core": "^4.11.2",
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"@material-ui/icons": "^4.11.2",
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"@material-ui/styles": "^4.11.2",
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"axios": "^0.19.2",
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"clsx": "^1.1.0",
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"clsx": "^1.1.1",
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"fontfaceobserver": "^2.1.0",
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"fs-extra": "^9.0.0",
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"fs-extra": "^9.0.1",
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"imagemin-mozjpeg": "^8.0.0",
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"imagemin-optipng": "^7.1.0",
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"install": "^0.13.0",
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"next": "^9.3.1",
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"next-compose-plugins": "^2.2.0",
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"next-optimized-images": "^2.5.5",
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"npm": "^6.14.4",
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"next": "^9.5.5",
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"next-compose-plugins": "^2.2.1",
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"next-optimized-images": "^2.6.2",
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"npm": "^6.14.11",
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"prop-types": "^15.7.2",
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"react": "^16.13.1",
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"react-dom": "^16.13.1",
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"react": "^16.14.0",
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"react-dom": "^16.14.0",
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"react-lazy-load-image-component": "^1.5.1",
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"react-lottie": "^1.2.3"
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},
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"scripts": {

‎pages/_app.js‎

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@@ -7,6 +7,8 @@ import Header from "../src/ui/Header";
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import Footer from "../src/ui/Footer";
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import Fonts from "../src/ui/Fonts";
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import { LazyLoadComponent } from "react-lazy-load-image-component";
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export default class MyApp extends App {
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constructor(props) {
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super(props);
@@ -56,10 +58,12 @@ export default class MyApp extends App {
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setSelectedIndex={this.setSelectedIndex}
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setValue={this.setValue}
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/>
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<Footer
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setSelectedIndex={this.setSelectedIndex}
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setValue={this.setValue}
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/>
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<LazyLoadComponent threshold={400}>
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<Footer
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setSelectedIndex={this.setSelectedIndex}
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setValue={this.setValue}
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/>
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</LazyLoadComponent>
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</ThemeProvider>
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</React.Fragment>
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);

‎pages/_document.js‎

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@@ -1,12 +1,12 @@
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import React from "react";
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import Document, { Head, Main, NextScript } from "next/document";
2+
import Document, { Html, Head, Main, NextScript } from "next/document";
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import { ServerStyleSheets } from "@material-ui/core/styles";
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import Theme from "../src/ui/Theme";
55

66
export default class MyDocument extends Document {
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render() {
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return (
9-
<html lang="en">
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<Html lang="en">
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<Head>
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{/* PWA primary color */}
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<meta name="viewport" content="width=device-width, initial-scale=1" />
@@ -29,7 +29,7 @@ export default class MyDocument extends Document {
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<Main />
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<NextScript />
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</body>
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</html>
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</Html>
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);
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}
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}

‎pages/index.js‎

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@@ -15,6 +15,11 @@ import CallToAction from "../src/ui/CallToAction";
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import animationData from "../src/animations/landinganimation/data";
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18+
import {
19+
LazyLoadImage,
20+
LazyLoadComponent,
21+
} from "react-lazy-load-image-component";
22+
1823
const useStyles = makeStyles((theme) => ({
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animation: {
2025
maxWidth: "50em",
@@ -115,6 +120,8 @@ const useStyles = makeStyles((theme) => ({
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},
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},
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infoBackground: {
123+
position: "absolute",
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zIndex: "-1",
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backgroundImage: `url("/assets/infoBackground.svg")`,
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backgroundPosition: "center",
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backgroundSize: "cover",
@@ -249,7 +256,7 @@ export default function LandingPage(props) {
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</Button>
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</Grid>
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<Grid item>
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<img
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<LazyLoadImage
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className={classes.icon}
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alt="custom software icon"
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src="/assets/customSoftwareIcon.svg"
@@ -298,7 +305,7 @@ export default function LandingPage(props) {
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</Button>
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</Grid>
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<Grid item style={{ marginRight: matchesSM ? 0 : "5em" }}>
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<img
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<LazyLoadImage
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className={classes.icon}
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alt="mobile phone icon"
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src="/assets/mobileIcon.svg"
@@ -348,7 +355,7 @@ export default function LandingPage(props) {
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</Button>
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</Grid>
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<Grid item>
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<img
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<LazyLoadImage
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className={classes.icon}
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alt="website icon"
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src="/assets/websiteIcon.svg"
@@ -399,17 +406,18 @@ export default function LandingPage(props) {
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</Grid>
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</CardContent>
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</Card>
402-
<div className={classes.revolutionBackground} />
409+
<LazyLoadComponent threshold={850}>
410+
<div className={classes.revolutionBackground} />
411+
</LazyLoadComponent>
403412
</Grid>
404413
</Grid>
405414
{/*-----Information Block-----*/}
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<Grid item>
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<Grid
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container
409-
style={{ height: "80em" }}
418+
style={{ height: "47em" }}
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alignItems="center"
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direction="row"
412-
className={classes.infoBackground}
413421
>
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{/* Wrapping up both contact us and about us card */}
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<Grid
@@ -489,11 +497,17 @@ export default function LandingPage(props) {
489497
</Grid>
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</Grid>
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</Grid>
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<LazyLoadComponent threshold={850}>
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<div className={classes.infoBackground} />
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</LazyLoadComponent>
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</Grid>
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</Grid>
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{/* Call To Action Block */}
506+
495507
<Grid item>
496-
<CallToAction setValue={props.setValue} />
508+
<LazyLoadComponent threshold={850}>
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<CallToAction setValue={props.setValue} />
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</LazyLoadComponent>
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</Grid>
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</Grid>
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);

‎pages/revolution.js‎

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@@ -10,6 +10,8 @@ import technologyAnimation from "../src/animations/technologyAnimation/data.json
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1111
import CallToAction from "../src/ui/CallToAction";
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13+
import { LazyLoadImage } from "react-lazy-load-image-component";
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1315
const useStyles = makeStyles((theme) => ({
1416
rowContainer: {
1517
paddingLeft: "5em",
@@ -74,7 +76,9 @@ export default function Revolution(props) {
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style={{ marginTop: "5em" }}
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>
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<Grid item lg>
77-
<img
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<LazyLoadImage
80+
threshold={400}
81+
age
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src="/assets/vision.svg"
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alt="Mountain through binoculars"
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style={{
@@ -320,7 +324,8 @@ export default function Revolution(props) {
320324
</Grid>
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</Grid>
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<Grid item lg style={{ alignSelf: "center" }}>
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<img
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<LazyLoadImage
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threshold={400}
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src="/assets/consultationIcon.svg"
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alt="handshake"
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width="100%"
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</Grid>
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</Grid>
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<Grid item lg style={{ alignSelf: "center" }}>
389-
<img
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<LazyLoadImage
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threshold={400}
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src="/assets/mockupIcon.svg"
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alt="basic website design outline"
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width="100%"
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453459
</Grid>
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</Grid>
455461
<Grid item lg style={{ alignSelf: "center" }}>
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<img
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<LazyLoadImage
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threshold={400}
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src="/assets/reviewIcon.svg"
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alt="magnifying glass"
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width="100%"
@@ -510,7 +517,8 @@ export default function Revolution(props) {
510517
</Grid>
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</Grid>
512519
<Grid item lg style={{ alignSelf: "center" }}>
513-
<img
520+
<LazyLoadImage
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threshold={400}
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src="/assets/designIcon.svg"
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alt="paint brush leaving stroke of paint"
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width="100%"
@@ -567,7 +575,8 @@ export default function Revolution(props) {
567575
</Grid>
568576
</Grid>
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<Grid item lg style={{ alignSelf: "center" }}>
570-
<img
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<LazyLoadImage
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threshold={400}
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src="/assets/reviewIcon.svg"
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alt="magnifying glass"
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width="100%"
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661670
</Grid>
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</Grid>
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<Grid item lg style={{ alignSelf: "center" }}>
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<img
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<LazyLoadImage
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threshold={400}
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src="/assets/buildIcon.svg"
666676
alt="building construction site"
667677
width="100%"
@@ -728,7 +738,8 @@ export default function Revolution(props) {
728738
</Grid>
729739
</Grid>
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<Grid item lg style={{ alignSelf: "center" }}>
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<img
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<LazyLoadImage
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threshold={400}
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src="/assets/launchIcon.svg"
733744
alt="rocket"
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width="100%"
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794805
</Grid>
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</Grid>
796807
<Grid item lg style={{ alignSelf: "center" }}>
797-
<img
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<LazyLoadImage
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threshold={400}
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src="/assets/maintainIcon.svg"
799811
alt="wrench tightening bolts"
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width="100%"
@@ -862,7 +874,8 @@ export default function Revolution(props) {
862874
</Grid>
863875
</Grid>
864876
<Grid item lg style={{ alignSelf: "center" }}>
865-
<img
877+
<LazyLoadImage
878+
threshold={400}
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src="/assets/iterateIcon.svg"
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alt="falling dominoes"
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width="100%"

‎src/ui/Header.js‎

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@@ -242,31 +242,25 @@ export default function Header(props) {
242242
{ name: "About Us", link: "/about", activeIndex: 4 },
243243
];
244244

245-
// REACT useEffect hook
245+
const path = typeof window !== "undefined" ? window.location.search : null;
246+
247+
const activeIndex = () => {
248+
const found = routes.find((route) => route.link === path);
249+
const menuFound = menuOptions.find(({ link }) => link === path);
250+
251+
if (menuFound) {
252+
props.setValue(1);
253+
props.setSelectedIndex(menuFound.selectedIndex);
254+
} else if (found === undefined) {
255+
props.setValue(false);
256+
} else {
257+
props.setValue(found.activeIndex);
258+
}
259+
};
260+
246261
useEffect(() => {
247-
[...menuOptions, ...routes].forEach((route) => {
248-
switch (window.location.pathname) {
249-
case `${route.link}`:
250-
if (props.value !== route.activeIndex) {
251-
props.setValue(route.activeIndex);
252-
if (
253-
route.selectedIndex &&
254-
route.selectedIndex !== props.selectedIndex
255-
) {
256-
props.setSelectedIndex(route.selectedIndex);
257-
}
258-
}
259-
break;
260-
case "/estimate":
261-
if (props.value !== 5) {
262-
props.setValue(5);
263-
}
264-
break;
265-
default:
266-
break;
267-
}
268-
});
269-
}, [props.value, menuOptions, props.selectedIndex, routes, props]);
262+
activeIndex();
263+
}, [path]);
270264

271265
// TABS
272266
const tabs = (

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