Developing TypeScript applications often involves using JavaScript callbacks in order

I'm encountering some challenges implementing a JavaScript callback with namespace in a TypeScript file. I initially believed that I could directly copy JavaScript code into TypeScript, but Visual Studio's compiler is throwing multiple errors.

Do I need to convert the JavaScript to TypeScript using a lambda expression, or is there a way to suppress these error messages?

 ; (function (scope, $, undefined) {
    'use strict';

    scope.ajaxPost = function () {
        $.ajax({
            url: 'PassData/PostAjax',
            type: "POST",
            data: { 'jsonMessage': "I was passed successfully" },
            async: true,
            dataType: "json",
            success: function (returnVal) {
                alert(returnVal);
            },
            error: function (data) {
                alert("failed");
            },
        });
        return false;
    };
}(
    some.namespace('my.namespace.Calllback'),
    jQuery
));

Answer №1

Errors thrown by the TypeScript compiler due to mismatching types actually serve a valuable purpose during the transition from JavaScript to TypeScript.

Despite the presence of errors, as long as the code has valid syntax, the TypeScript compiler will still generate JavaScript output. This means you can start incorporating TypeScript into your codebase and make updates gradually.

If you encounter a specific error that you need help with, feel free to either update your question or create a new one.

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