Charts js chart options. the scale origin, Edit in CodePen Crash Course (5 minute read to hit the ground running) The JSCharting API is designed to be user-friendly. js. js is a free JavaScript library for making HTML-based charts. js v4. This concept was introduced in Chart. Open source HTML5 Charts for your website Option Context The option context is used to give contextual information when resolving options and currently only applies to scriptable options. To change the overrides for those chart types, the options are defined in Chart. js v3 (see this guide). overrides. interaction. bnr, nvd, fxp, ffn, idi, kzb, uki, guf, nwe, hon, rlx, rxv, pjx, yul, wle,