Gathering detailed insights and metrics for ngx-progressive-image-loader
Gathering detailed insights and metrics for ngx-progressive-image-loader
lazy load img/picture, prevent reflow and seo friendly.
Installations
npm install ngx-progressive-image-loaderDeveloper Guide
BETA
Typescript
No
Module System
CommonJS
Releases
6
Languages
4
TypeScript
HTML
JavaScript
CSS
TypeScript (74.15%)
HTML (13.13%)
JavaScript (9.15%)
CSS (3.57%)
Developer
maxisam
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
35 Stars
118 Commits
6 Forks
2 Watchers
30 Branches
2 Contributors
Updated on Apr 26, 2021
Maintainers
1
Package Meta Information
Latest Version
4.0.0
Package Id
ngx-progressive-image-loader@4.0.0
Unpacked Size
376.05 kB
Size
77.94 kB
File Count
63
Total Downloads
Cumulative downloads
Total Downloads
NaN
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dependencies
2
Peer Dependencies
2
ngx-progressive-image-loader
Support Angular >=6.0.0
Demo
Features
-
No other JS dependency. Just Angular
-
Use IntersectionObserver to determine the timing to load the image
-
Support image and picture
-
Preserve space to avoid dom reflow
-
Show small default loading image with fading transition
-
Load image directly for spider (SEO friendly) or non-supported browsers
-
Aggressive Loading. Able to continue to load even if images haven't got intersected when the concurrently loading count is lower than a certain value. (after 4.0.0)
Install
1npm install ngx-progressive-image-loader --save
Open your module file e.g app.module.ts and update imports array
1import { NgxProgressiveImageLoaderModule, IImageLoaderOptions } from 'ngx-progressive-image-loader'; 2... 3imports: [ 4... 5 NgxProgressiveImageLoaderModule.forRoot(<IImageLoaderOptions>{ 6 // rootMargin must be specified in pixels or percent 7 rootMargin: '30px', 8 threshold: 0.1, 9 // css filter 10 filter: 'blur(3px) drop-shadow(0 0 0.75rem crimson)', 11 // image width / height ratio for image holder 12 imageRatio: 16 / 9, 13 // loading image in placeholder. Can be URL or base64 14 placeholderImageSrc: 15 // tslint:disable-next-line:max-line-length 16 'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNTAgMjUwIj4KICA8cGF0aCBmaWxsPSIjZGQwMDMxIiBkPSJNMTI1IDMwTDMxLjkgNjMuMmwxNC4yIDEyMy4xTDEyNSAyMzBsNzguOS00My43IDE0LjItMTIzLjF6Ii8+CiAgPHBhdGggZmlsbD0iI2MzMDAyZiIgZD0iTTEyNSAzMHYyMi4yLS4xVjIzMGw3OC45LTQzLjcgMTQuMi0xMjMuMUwxMjUgMzB6Ii8+CiAgPHBhdGggZD0iTTEyNSA1Mi4xTDY2LjggMTgyLjZoMjEuN2wxMS43LTI5LjJoNDkuNGwxMS43IDI5LjJIMTgzTDEyNSA1Mi4xem0xNyA4My4zaC0zNGwxNy00MC45IDE3IDQwLjl6IiBmaWxsPSIjZmZmIi8+Cjwvc3ZnPgo=' 17 }) 18... 19]
Add style to your global scss
1@import '~ngx-progressive-image-loader/ngx-progressive-image-loader'; 2 3$scale: 0.5; // the scale of loading image in place holder 4$transition: opacity 1s linear; // the transition of loading image in place holder, you could try: opacity .3s ease 5@include progressive-image-loader($scale, $transition);
Usage
- with img
1<ngx-progressive-image-loader> 2 <ngx-image-placeholder> 3 <!-- ngx-image-placeholder is optional --> 4 <img [src]="'/assets/Avengers1.jpg'" alt="" ngxProgressiveImage /> 5 </ngx-image-placeholder> 6 <img src="/assets/Avengers2.jpg" alt="" ngxProgressiveImage /> 7</ngx-progressive-image-loader>
- with img + srcset
1<ngx-progressive-image-loader> 2 <img 3 [src]="'/assets/Avengers6.jpg'" 4 [srcset]="'/assets/Avengers6.jpg 800w,/assets/Avengers7.jpg 1366w'" 5 size="(max-width: 1000px) 100vw, 100vw" 6 ngxProgressiveImage 7 /> 8</ngx-progressive-image-loader>
- with picture element
1<ngx-progressive-image-loader> 2 <picture ngxProgressiveImage> 3 <source [srcset]="'/assets/Avengers4.jpg'" media="(max-width: 1000px)" /> 4 <source [srcset]="'/assets/Avengers5.jpg'" media="(min-width: 1000px)" /> 5 <img [src]="'/assets/Avengers4.jpg'" alt="My default image" /> 6 </picture> 7</ngx-progressive-image-loader>
Configuration for IImageLoaderOptions
-
root The element that is used as the viewport for checking visiblity of the target. Must be the ancestor of the target. Defaults to the browser viewport if not specified or if null.
-
rootMargin
Margin around the root. Can have values similar to the CSS margin property, e.g. "10px 20px 30px 40px" (top, right, bottom, left). The values can be percentages. This set of values serves to grow or shrink each side of the root element's bounding box before computing intersections. Defaults to all zeros.
-
threshold
Either a single number or an array of numbers which indicate at what percentage of the target's visibility the observer's callback should be executed. If you only want to detect when visibility passes the 50% mark, you can use a value of 0.5. If you want the callback run every time visibility passes another 25%, you would specify the array [0, 0.25, 0.5, 0.75, 1]. The default is 0 (meaning as soon as even one pixel is visible, the callback will be run). A value of 1.0 means that the threshold isn't considered passed until every pixel is visible.
-
filter
If you want to set more filter. It uses the input string as css filter.
-
placeholderImageSrc
src for loading image. It works just like src, takes base64 or url.
-
imageRatio
image width / height
For ngx-image-placeholder component, it takes
-
imageRatio
-
placeholderImageSrc
(after 3.0.0, you can set imageRatio and placeholderImageSrc directly on ngxProgressiveImage and spare ngx-image-placeholder layer)
For ngx-progressive-image-loader component, it takes
-
imageRatio
-
placeholderImageSrc
-
filter
-
isAggressiveLoading: boolean; default to
true; Set totrueto enable Aggressive Loading feature. (after 4.0.0) -
concurrentLoading: number; default t0 4; Decided at least how many concurrent loading when Aggressive Loading is enabled
For ngxProgressiveImage directive, (only for image or source elements)
-
imageRatio
-
placeholderImageSrc
-
noPlaceholder: boolean; default to
false, set totruewill skip image placeholder
Build project
1npm i 2 3npm run build
To run demo code locally
npm run start
Browser Compatibility
Browsers don't support Intersection Observer API will not work as expect. It will load images like old time.
Use pollyfill like below might make it work.
1<script src="https://polyfill.io/v2/polyfill.min.js?features=IntersectionObserver"></script>
Contributing
- Your commits conform to the conventions established here
Troubleshooting
Please ask your general questions at https://stackoverflow.com
Shoutouts 🙏
This project was generated with Angular CLI version 6.2.0 beta 02.
Kudos to the following authors:
https://deanhume.com/lazy-loading-images-using-intersection-observer/
https://www.voorhoede.nl/en/blog/say-no-to-image-reflow/
https://jmperezperez.com/medium-image-progressive-loading-placeholder/
https://github.com/verlok/lazyload for detecting spider
And my wife and my child to let me work on a weekend for this.
Big thanks to BrowserStack for letting the maintainers use their service to debug browser issues.
No vulnerabilities found.
Reason
no binaries found in the repo
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
Found 1/4 approved changesets -- score normalized to 2
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'master'
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 29 are checked with a SAST tool
Reason
137 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-c75v-2vq8-878f
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-6chw-6frg-f759
- Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
- Warn: Project is vulnerable to: GHSA-whgm-jr23-g3j9
- Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
- Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
- Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-cwfw-4gq5-mrqx
- Warn: Project is vulnerable to: GHSA-g95f-p29q-9xw4
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-x9w5-v3q2-3rhw
- Warn: Project is vulnerable to: GHSA-w8qv-6jwh-64r5
- Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
- Warn: Project is vulnerable to: GHSA-w573-4hg7-7wgq
- Warn: Project is vulnerable to: GHSA-3wcq-x3mq-6r9p
- Warn: Project is vulnerable to: GHSA-ff7x-qrg7-qggm
- Warn: Project is vulnerable to: GHSA-vh7m-p724-62c2
- Warn: Project is vulnerable to: GHSA-r9p9-mrjm-926w
- Warn: Project is vulnerable to: GHSA-434g-2637-qmqr
- Warn: Project is vulnerable to: GHSA-49q7-c7j4-3p7m
- Warn: Project is vulnerable to: GHSA-977x-g7h5-7qgw
- Warn: Project is vulnerable to: GHSA-f7q4-pwc6-w24p
- Warn: Project is vulnerable to: GHSA-fc9h-whq2-v747
- Warn: Project is vulnerable to: GHSA-vjh7-7g9h-fjfh
- Warn: Project is vulnerable to: GHSA-j4f2-536g-r55m
- Warn: Project is vulnerable to: GHSA-r7qp-cfhv-p84w
- Warn: Project is vulnerable to: GHSA-6h5x-7c5m-7cr7
- Warn: Project is vulnerable to: GHSA-rv95-896h-c2vc
- Warn: Project is vulnerable to: GHSA-qw6h-vgh9-j6wx
- Warn: Project is vulnerable to: GHSA-74fj-2j2h-c42q
- Warn: Project is vulnerable to: GHSA-pw2r-vq6v-hr8c
- Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
- Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
- Warn: Project is vulnerable to: GHSA-pfrx-2q88-qq97
- Warn: Project is vulnerable to: GHSA-43f8-2h32-f4cj
- Warn: Project is vulnerable to: GHSA-rc47-6667-2j5j
- Warn: Project is vulnerable to: GHSA-6x33-pw7p-hmpq
- Warn: Project is vulnerable to: GHSA-c7qv-q95q-8v27
- Warn: Project is vulnerable to: GHSA-qqgx-2p2h-9c37
- Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
- Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
- Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-jg8v-48h5-wgxg
- Warn: Project is vulnerable to: GHSA-36fh-84j7-cv5h
- Warn: Project is vulnerable to: GHSA-7x7c-qm48-pq9c
- Warn: Project is vulnerable to: GHSA-rc3x-jf5g-xvc5
- Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
- Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
- Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
- Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
- Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
- Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
- Warn: Project is vulnerable to: GHSA-82v2-mx6x-wq7q
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
- Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
- Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
- Warn: Project is vulnerable to: GHSA-qm28-7hqv-wg5j
- Warn: Project is vulnerable to: GHSA-92xj-mqp7-vmcj
- Warn: Project is vulnerable to: GHSA-wxgw-qj99-44c2
- Warn: Project is vulnerable to: GHSA-5rrq-pxf6-6jx5
- Warn: Project is vulnerable to: GHSA-8fr3-hfg3-gpgp
- Warn: Project is vulnerable to: GHSA-gf8q-jrpm-jvxq
- Warn: Project is vulnerable to: GHSA-2r2c-g63r-vccr
- Warn: Project is vulnerable to: GHSA-cfm4-qjh2-4765
- Warn: Project is vulnerable to: GHSA-x4jg-mjrx-434g
- Warn: Project is vulnerable to: GHSA-9v62-24cr-58cx
- Warn: Project is vulnerable to: GHSA-r8f7-9pfq-mjmv
- Warn: Project is vulnerable to: GHSA-jmqm-f2gx-4fjv
- Warn: Project is vulnerable to: GHSA-6fx8-h7jm-663j
- Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
- Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
- Warn: Project is vulnerable to: GHSA-rhx6-c78j-4q9w
- Warn: Project is vulnerable to: GHSA-h7cp-r72f-jxh6
- Warn: Project is vulnerable to: GHSA-v62p-rq8g-8h59
- Warn: Project is vulnerable to: GHSA-566m-qj78-rww5
- Warn: Project is vulnerable to: GHSA-hwj9-h5mp-3pm3
- Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
- Warn: Project is vulnerable to: GHSA-6fw4-hr69-g3rv
- Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
- Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
- Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
- Warn: Project is vulnerable to: GHSA-7mwh-4pqv-wmr8
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-m6fv-jmcg-4jfg
- Warn: Project is vulnerable to: GHSA-h9rv-jmmf-4pgx
- Warn: Project is vulnerable to: GHSA-hxcc-f52p-wc94
- Warn: Project is vulnerable to: GHSA-cm22-4g7w-348p
- Warn: Project is vulnerable to: GHSA-g4rg-993r-mgx7
- Warn: Project is vulnerable to: GHSA-4rq4-32rv-6wp6
- Warn: Project is vulnerable to: GHSA-64g7-mvw6-v9qj
- Warn: Project is vulnerable to: GHSA-3f95-r44v-8mrg
- Warn: Project is vulnerable to: GHSA-28xr-mwxg-3qc8
- Warn: Project is vulnerable to: GHSA-9p95-fxvg-qgq2
- Warn: Project is vulnerable to: GHSA-9w5j-4mwv-2wj8
- Warn: Project is vulnerable to: GHSA-fxwf-4rqh-v8g3
- Warn: Project is vulnerable to: GHSA-25hc-qcg6-38wj
- Warn: Project is vulnerable to: GHSA-xfhh-g9f5-x4m4
- Warn: Project is vulnerable to: GHSA-qm95-pgcg-qqfq
- Warn: Project is vulnerable to: GHSA-cqmj-92xf-r6r9
- Warn: Project is vulnerable to: GHSA-c9g6-9335-x697
- Warn: Project is vulnerable to: GHSA-vx3p-948g-6vhq
- Warn: Project is vulnerable to: GHSA-3jfq-g458-7qm9
- Warn: Project is vulnerable to: GHSA-5955-9wpr-37jh
- Warn: Project is vulnerable to: GHSA-f5x3-32g6-xq36
- Warn: Project is vulnerable to: GHSA-r628-mhmh-qjhw
- Warn: Project is vulnerable to: GHSA-9r2w-394v-53qc
- Warn: Project is vulnerable to: GHSA-qq89-hq3f-393p
- Warn: Project is vulnerable to: GHSA-4wf5-vphf-c2xc
- Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
- Warn: Project is vulnerable to: GHSA-884p-74jh-xrg2
- Warn: Project is vulnerable to: GHSA-j7fq-p9q7-5wfv
- Warn: Project is vulnerable to: GHSA-7p7h-4mm5-852v
- Warn: Project is vulnerable to: GHSA-9m6j-fcg5-2442
- Warn: Project is vulnerable to: GHSA-hh27-ffr2-f2jc
- Warn: Project is vulnerable to: GHSA-rqff-837h-mm52
- Warn: Project is vulnerable to: GHSA-8v38-pw62-9cw2
- Warn: Project is vulnerable to: GHSA-hgjh-723h-mx2j
- Warn: Project is vulnerable to: GHSA-jf5r-8hm2-f872
- Warn: Project is vulnerable to: GHSA-mgfv-m47x-4wqp
- Warn: Project is vulnerable to: GHSA-wr3j-pwj9-hqq6
- Warn: Project is vulnerable to: GHSA-4v9v-hfq4-rm2v
- Warn: Project is vulnerable to: GHSA-9jgg-88mc-972h
- Warn: Project is vulnerable to: GHSA-4fc4-chg7-h8gh
- Warn: Project is vulnerable to: GHSA-g78m-2chm-r7qv
- Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
- Warn: Project is vulnerable to: GHSA-776f-qx25-q3cc
- Warn: Project is vulnerable to: GHSA-72mh-269x-7mh5
- Warn: Project is vulnerable to: GHSA-h4j5-c7cj-74xg
- Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
- Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp
Score
2
/10
Last Scanned on 2025-07-07
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