JS: Number.parseFloat

By Xah Lee. Date: . Last updated: .


Convert a string string (For example, "3.14") to a decimal number.

Number.parseFloat is the same function as the global function parseFloat.

[see JS: the Global Object]

 Number.parseFloat === parseFloat
// true
// string to number
 parseFloat("324") === 324
// true


ECMAScript® 2016 Language Specification#sec-number.parsefloat

Number Topic

  1. JS: Format Number
  2. JS: String to Number
  3. JS: Number Object
  4. JS: Number Constructor
  5. JS: Number.prototype

String Topic

  1. JS: Source Code Encoding
  2. JS: String Code Unit vs Code Point
  3. JS: Unicode Character Escape Sequence
  4. JS: Allowed Characters in Identifier
  5. HTML: Allowed Characters in id Attribute
  6. HTML: Character Sets and Encoding
  7. HTML/XML Entity List

  1. JS: Template String
  2. JS: Convert String to Number
  3. JS: Encode URL, Escape String
  4. JS: Format Number
  5. JS: JSON

  1. JS: String Object
  2. JS: String.prototype
  3. JS: String Constructor
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