EC
TS95175
TypeScriptERRORNotableConfigHIGH confidence

Use `Number.isNaN` in all conditions.

Production Risk

Build will fail; resolve before shipping.

What this means

A TypeScript diagnostic (TS95175): Use `Number.isNaN` in all conditions.. This diagnostic is emitted by the TypeScript compiler when use `Number.isNaN` in all conditions..

Why it happens
  1. 1Incorrect TypeScript syntax or type usage
  2. 2Type mismatch between declared and actual value
How to reproduce

TypeScript compiler reports TS95175 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS95175
// Use `Number.isNaN` in all conditions.

expected output

error TS95175: Use `Number.isNaN` in all conditions.

Fix

Fix the tsconfig.json option

WHEN When a compiler option is invalid or missing

Fix the tsconfig.json option
// tsconfig.json
{
  "compilerOptions": {
    // Review and correct the flagged option
  }
}
// Run: npx tsc --showConfig to see effective config

Why this works

TypeScript validates tsconfig.json options; check the official tsconfig reference for valid values.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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