Google Apps Script ReferenceError: TextEncoder is not defined-CodePudding

I'm trying to use TextEncoder in Apps Script:

const textEncoder = new TextEncoder("utf-8");
let str = "test";
alert(textEncoder.encode(str));

But I'm getting this error: ReferenceError: TextEncoder is not defined

I guess it's not supported by Apps Script. Is there a way to use TextEncoder in Apps Script (maybe I'm missing a reference), or a 'long way' of doing the code above using other JS or Apps Script commands?

Thanks in advance!

CodePudding user response：

I believe your goal is as follows.

You want to convert the following Javascript to Google Apps Script.
```
  const textEncoder = new TextEncoder("utf-8");
  let str = "test";
  alert(textEncoder.encode(str));
```
- When this script is run, 116,101,115,116 is returned.

Unfortunately, at Google Apps Script, new TextEncoder cannot be used. So, in this case, how about the following sample script?

Sample script:

function myFunction() {
  const str = "test";
  const res = Utilities.newBlob(str).getBytes();
  console.log(res) // [ 116, 101, 115, 116 ]
}

At Google Apps Script, UTF-8 is used as the default.
When this script is run, you can see the value of [ 116, 101, 115, 116 ] at the log.
In the case of const res = Utilities.newBlob(str).getBytes(), the array of twos-complement 8-bit signed integers is returned. This is for Google Apps Script.

If you want to retrieve the array of 8-bit unsigned integers, please modify as follows.

From

  const res = Utilities.newBlob(str).getBytes();

  const res = [...Uint8Array.from(Utilities.newBlob(str).getBytes())];

Sample script:

References: