Finally, note that you should run the below code through a minifier (especially closure compiler) to turn sequences like 0x1e = 0xD800 & point = 0xDC00 & nextcode 0xffff) In such circumstances as these with such memory inefficient slow browsers, this polyfill (or any polyfill for that matter) would be impractical for large strings in such old browsers. However, in IE5-IE9, it will return a regular Array instead of a TypedArray. It is designed to work in IE5 "out of the box". The below polyfill will only furfill the specs demanded by the W3 (no character encodings other than UTF-8 are supported, unfortunately ☹️). This is potentially more performant than the older encode() method. () Takes a USVString to encode and a destination Uint8Array to put resulting utf-8 encoded text into, and returns a dictionary object indicating the progress of the encoding. () Takes a USVString as input, and returns a Uint8Array containing utf-8 encoded text. The TextEncoder interface doesn't inherit any method. Read only Is a DOMString containing the name of the encoder, that is a string describing the method the TextEncoder will use. The TextEncoder interface doesn't inherit any property. Example const encoder = new TextEncoder()Ĭonsole.log(view) // Uint8Array(3) Ĭonstructor TextEncoder() Returns a newly constructed TextEncoder that will generate a byte stream with utf-8 encoding. Note: There is a polyfill implementation to support all the legacy encodings in GitHub.
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