Using UTF-8-Validate

[Bryon Trott]

Hello,

I am new to node.js  I am trying to use the module UTF-8-Validate to check a simple test buffer.

https://www.npmjs.com/package/utf-8-validate

However I am not sure how to call the function.

'use strict';
 
var isValid = require('utf-8-validate').isValidUTF8;

The module exposes 1 function:

isValidUTF8

Validate if the passed in buffer contains valid UTF-8 chars.

bu.isValidUTF8(buffer);

If anybody know how to do this or can point me to some sample code it would be very helpful.

Thanks

[Matt]

In the above example, you just use: if (isValid(buf)) { ... }

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[Bryon Trott]

I tried that and still get an error that says isValid is not a function?

C:\nodejs>node buftest.js
buffer
C:\nodejs\buftest.js:9
if (isValid(buf1)){
    ^

TypeError: isValid is not a function
    at Object.<anonymous> (C:\nodejs\buftest.js:9:5)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)
    at node.js:968:3

'use strict';
var isValid = require('utf-8-validate').isValidUTF8;

const buf1 = new Buffer('buffer');

console.log(buf1.toString());

if (isValid(buf1)){
 console.log('true')
 
}
else {
 console.log('false')
 
};

[Matt]

I downloaded it myself and dug into it. Seems the require line needs to be:

    var isValid = require('utf-8-validate').Validation.isValidUTF8;

Hope that helps.

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[Bryon Trott]

Yes, that helped.  The function now works.