Function utf8fromString

Encode a string to UTF-8 bytes (strict mode)

Throws on invalid Unicode (unpaired surrogates)

This is similar to the following snippet (but works on all engines):

// Strict encode, requiring Unicode codepoints to be valid
if (typeof string !== 'string' || !string.isWellFormed()) throw new TypeError()
return new TextEncoder().encode(string)
Copy

Encode a string to UTF-8 bytes (strict mode)

Throws on invalid Unicode (unpaired surrogates)

This is similar to the following snippet (but works on all engines):

// Strict encode, requiring Unicode codepoints to be valid
if (typeof string !== 'string' || !string.isWellFormed()) throw new TypeError()
return new TextEncoder().encode(string)
Copy

Encode a string to UTF-8 bytes (strict mode)

Throws on invalid Unicode (unpaired surrogates)

This is similar to the following snippet (but works on all engines):

// Strict encode, requiring Unicode codepoints to be valid
if (typeof string !== 'string' || !string.isWellFormed()) throw new TypeError()
return new TextEncoder().encode(string)
Copy

Encode a string to UTF-8 bytes (strict mode)

Throws on invalid Unicode (unpaired surrogates)

This is similar to the following snippet (but works on all engines):

// Strict encode, requiring Unicode codepoints to be valid
if (typeof string !== 'string' || !string.isWellFormed()) throw new TypeError()
return new TextEncoder().encode(string)
Copy