JavaScript (ES2026) reference · Math Methods and Constants

JavaScript Math.E Property

Euler's number, the base of natural logarithms, approximately 2.71828.

JavaScript (ES2026) Since ES1

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Syntax

Math.E

2.718281828459045

The valueTry it yourself

console.log(Math.E, Math.log(Math.E));

Output

2.718281828459045 1

The limit that defines eTry it yourself

console.log((1 + 1 / 1e6) ** 1e6);

Output

2.7182804690957534

Version	Change
JavaScript ES1	Added

Math.exp() · Return e (about 2.718) raised to the given power, used for exponential growth, decay and probability formulas.
Math.log() · Return the natural logarithm (base e) of a number; divide by Math.log(base) to get a logarithm in any base.
Math.PI · The ratio of a circle's circumference to its diameter, approximately 3.14159.
JavaScript Math · tutorial
JavaScript Numbers · tutorial