Cannot read property 'data' of undefined: Plotly.newPlot missing data handling
Goal The objective is to migrate a small Plotly.js application to a newer release without downtime. During the transition, the application may temporarily lack data when initializing charts. Constraint Plotly.newPlot throws a runtime exception – "Cannot read property 'data' of undefined" – when its first argument is undefined or null. The library documentati
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