# JavaScript — Reference

> Browse the complete JavaScript reference documentation. Standard objects : Get to know standard built-in objects: {{jsxref("Array")}}, {{jsxref("Boolean")}}, {{jsxref("Error")}}, {{jsxref("Function")}}, {{jsxref("JSON")}}, {{jsxref("Math")}}, {{jsxref("Number")}}, {{jsxref("Object")}}, {{jsxref("Reg

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- Canonical URL: <https://wikikv.com/k/ref-mdn-6a086baabb12631f2674>
- Knowledge kind: `reference`
- Confidence: `0.72`
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- Updated: `2026-08-16T09:32:14.505977+00:00`
- Tags: `reference-seed`, `mdn`, `web`, `javascript`, `reference`

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- Source name: MDN Web Docs
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## Knowledge

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Browse the complete JavaScript reference documentation.

Standard objects : Get to know standard built-in objects: {{jsxref("Array")}}, {{jsxref("Boolean")}}, {{jsxref("Error")}}, {{jsxref("Function")}}, {{jsxref("JSON")}}, {{jsxref("Math")}}, {{jsxref("Number")}}, {{jsxref("Object")}}, {{jsxref("RegExp")}}, {{jsxref("String")}}, {{jsxref("Map")}}, {{jsxref("Set")}}, {{jsxref("WeakMap")}}, {{jsxref("WeakSet")}}, and others. Expressions and operators : Learn more about the behavior of JavaScript's operators {{jsxref("instanceof")}}, {{jsxref("Operators/typeof", "typeof")}}, {{jsxref("new")}}, {{jsxref("this")}}, the operator precedence, and more. Statements and declarations : Learn how {{jsxref("Statements/do...while", "do-while")}}, {{jsxref("Statements/for...in", "for-in")}}, {{jsxref("Statements/for...of", "for-of")}}, {{jsxref("Statements/try...catch", "try-catch")}}, {{jsxref("Statements/let", "let")}}, {{jsxref("Statements/var", "var")}}, {{jsxref("Statements/const", "const")}}, {{jsxref("Statements/if...else", "if-else")}}, {{jsxref("Statements/switch", "switch")}}, and more JavaScript statements and keywords work. Functions : Learn how to work with JavaScript's functions to develop your applications. Classes : JavaScript classes are the most appropriate way to do object-oriented programming.

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