
JavaScript Operator Lookup
JavaScripting
Let's write robust, well-tested, modular JavaScript code.

f.lux
Iris
Twilight
Eyes Guard
Iris mini
LightBulb
NightTone
Reminds you when your phone gets too close to your eyes. Child and adult profiles, habit stats. Free for Android, no ads.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | mjavascript.com | ivisionguard.com |
| Pricing | ||
| Platforms | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Modular JavaScript yet.
iVisionGuard is a screen distance app for Android. Screen time apps count how long you look at the screen. iVisionGuard checks how close you hold it, and reminds you when it gets too close. The first time you open the app, hold the phone about 35 cm (14 inches) from your eyes and tap Save. From...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of iVisionGuard yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Modular JavaScript and iVisionGuard. For example, how are they different and which one is better?
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A full list of JavaScript operators with examples
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f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
Compare f.lux to Modular JavaScript or iVisionGuard:

Ranking of top JavaScript libraries, frameworks, and plugins
Compare JavaScripting to Modular JavaScript or iVisionGuard:

The fastest web framework for Go in (THIS) earth
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