TypeError: Cannot read properties of undefined (reading 'Mode')

Technical Support
1

Which product are you using?
PDF.js Express Plus

PDF.js Express Version
“@pdftron/pdfjs-express”: “^7.3.9”,

Detailed description of issue
I am receiving the error message TypeError: Cannot read properties of undefined (reading ‘Mode’) when trying to set the following const for docViewer.textSearchInit
const { docViewer, Annotations, CoreControls } = instance;

const searchMode = CoreControls.Search.Mode.PAGE_STOP | CoreControls.Search.Mode.HIGHLIGHT;

Additionally, the code snippet above is from your samples.

Expected behaviour
I expect that the properties are found.

Does your issue happen with every document, or just one?
Every document

Link to document
I cannot because it contains sensitive information and I don’t think it’s relevant
Code snippet
const { docViewer, Annotations, CoreControls } = instance;

const searchMode = CoreControls.Search.Mode.PAGE_STOP | CoreControls.Search.Mode.HIGHLIGHT;

3

Hello, I’m Ron, an automated tech support bot :robot:

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:APIs:Forums:

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4

Hello dcheli,

Welcome to the PDFJS Express forum!

You can access the search modes with the latest version by doing:

instance.Core.Search.Mode.PAGE_STOP

Which sample has this code snippet?
Let me know if this works for you

Best regards,
Tyler Gordon
Web Development Support Engineer
PDFTron


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5

This is the documentation that contains the code snippet.
Advanced Search | Documentation (pdfjs.express)

6

Hello dcheli,

Thank you for sending this, it looks like this guide is for version 8.0+ with the new namespace changes.

Best regards,
Tyler Gordon
Web Development Support Engineer
PDFTron


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7

Hey Tyler,
If you change the version on the page to 7.x.x you will see what I’m referring to (see below). I am using 7.3.9

const searchMode = CoreControls.Search.Mode.PAGE_STOP | CoreControls.Search.Mode.HIGHLIGHT;;
8

Hello dcheli,

My apologies, completely forgot to switch the version.

I wasnt able to get the error to occur with that whole snippet. Can you try with the latest build of v7.3.9?
Performing npm install @pdftron/pdfjs-express@7.3.9 should get the latest build.

Best regards,
Tyler Gordon
Web Development Support Engineer
PDFTron


Share how you are using PDF.js Express in your organization you could win a $500 Amazon gift card. All participants will receive 6 months of PDF.js Express+ for free. Learn more here