I'm getting the "Cannot read property '0' of undefined" error on a TypeScript file, originating from the no-sanitizer-with-danger.js file from the return section after line 80.

I've managed to suppress the error by adding Array.isArray(node.value.expression.properties) to each of the if statements like so:

if (isDangerous(node.name.name) && Array.isArray(node.value.expression.properties) && node.value.expression.properties[0].value.type !== 'CallExpression') { messageIndex = 0; } else if ( isDangerous(node.name.name) && Array.isArray(node.value.expression.properties) && node.value.expression.properties[0].value.type === 'CallExpression' && node.value.expression.properties[0].value.callee.type === 'Identifier' && config.wrapperName.indexOf(node.value.expression.properties[0].value.callee.name) === -1 ) { messageIndex = 1; } else if ( isDangerous(node.name.name) && Array.isArray(node.value.expression.properties) && node.value.expression.properties[0].value.type === 'CallExpression' && node.value.expression.properties[0].value.callee.type !== 'Identifier' ) { messageIndex = 2; }

But the fix isn't ideal and I thought asking one of you could get a better solution. I have a feeling it may be ESLint / TypeScript / Prettier / DOMPurify related as I'm still trying to get ESLint errors to appear after installing DOMPurify/Jam3 to my project.