![What is Strict Mode in JavaScript — A Comprehensive Guide | by Sudarshana Dayananda | JavaScript in Plain English What is Strict Mode in JavaScript — A Comprehensive Guide | by Sudarshana Dayananda | JavaScript in Plain English](https://miro.medium.com/max/1400/1*4UPpUI6gvPb0hRETQGNzUA.jpeg)
What is Strict Mode in JavaScript — A Comprehensive Guide | by Sudarshana Dayananda | JavaScript in Plain English
![SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode | by Shubham Verma | Medium SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode | by Shubham Verma | Medium](https://miro.medium.com/max/1400/1*NsGDh1e2mmYP7wm4H84_fA.png)
SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode | by Shubham Verma | Medium
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node.js - Error in node, npm versions, installations. SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode - Stack Overflow
Use of const in strict mode causing failures installing Node 0.12 · Issue #2100 · sass/node-sass · GitHub
![SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode | by Shubham Verma | Medium SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode | by Shubham Verma | Medium](https://miro.medium.com/max/1400/1*betkYJA09rf4KDtd9QSHgA.png)