ZPL Code not displaying properly

JavaScript
1

I have the following ZPL code:

^XZ
^XA
^MMT
^PW900
^LL300
^LS0
^FT900,132^A0I,150,150^FB854,1,38,C^FH\^CI28^FDABC#1\5C&^FS^CI27
^BY4,3,60^FT724,31^BCI,,N,N
^FH\^FD>:FREEZER#1^FS
^PQ1,0,1,Y
^XZ

which works fine if you paste it here : https://labelary.com/viewer.html

However, I am trying to store it in a variable in my code:

let prepareData = "^XZ"+
                      "^XA"+
                      "^MMT"+
                      "^PW900"+
                      "^LL300"+
                      "^LS0"+
                      "^FT900,132^A0I,150,150^FB854,1,38,C^FH\^CI28^FDNBA#1\5C&^FS^CI27"+
                      "^BY4,3,60^FT724,31^BCI,,N,N"+
                      "^FH\^FD>:FREEZER#1^FS"+
                      "^PQ1,0,1,Y"+
                      "^XZ"

JSFiddle here : https://jsfiddle.net/x8c14tpn/

It seems to be printing in console some weird characters which I think I should escape but I’m afraid if escaping it would mess up the code. So is there a way to keep it as it is?

Visual Studio was telling me Octal escape sequences are not allowed. Use the syntax '\x05' for the \5 on this line "^FT900,132^A0I,150,150^FB854,1,38,C^FH\^CI28^FDNBA#1\5C&^FS^CI27"+. Even though I replaced it with \x05 it didn’t print as expected.

2

Is it because carriage returns and line feeds are missing?

3

I’ve tried pasting everything in one line as well and it still behaves in similar manner.

4

Put the string in backticks instead of double quotes.

5

It appears that if you use a template string you need to escape the slashes (\) e.g.

`
^XZ
^XA
^MMT
^PW900
^LL300
^LS0
^FT900,132^A0I,150,150^FB854,1,38,C^FH\\^CI28^FDABC#1\\5C&^FS^CI27
^BY4,3,60^FT724,31^BCI,,N,N
^FH\\^FD>:FREEZER#1^FS
^PQ1,0,1,Y
^XZ
`

Otherwise it throws an error: octal escape sequences are not allowed in template strings

6

Strange but in that case you might have also not the wanted result as backslashes are normally not escaped in template strings or?

1 Like
7

Well if you console.log it out in the browser it does appear to give the desired result e.g.

^XZ
^XA
^MMT
^PW900
^LL300
^LS0
^FT900,132^A0I,150,150^FB854,1,38,C^FH\^CI28^FDABC#1\5C&^FS^CI27
^BY4,3,60^FT724,31^BCI,,N,N
^FH\^FD>:FREEZER#1^FS
^PQ1,0,1,Y
^XZ
8

Here it’s showing like this:

image
image1702×532 28.7 KB

Here’s more enlarged image:

image
image1024×243 10.8 KB

9

Hmm, it seems to be working in this case:

10

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