Byte size of string

OSCC · JavaScript, String · Oct 18, 2020

Returns the length of a string in bytes.

  • Convert a given string to a Blob Object.
  • Use Blob.size to get the length of the string in bytes.
const byteSize = str => new Blob([str]).size;
byteSize('😀'); // 4
byteSize('Hello World'); // 11

Recommended snippets

  • Converts a number in bytes to a human-readable string.

  • Random alphanumeric string

    JavaScript, String

    Generates a random string with the specified length.

  • Pad string

    JavaScript, String

    Pads a string on both sides with the specified character, if it's shorter than the specified length.