The error message “history.push is not a function” is typically encountered in JavaScript when trying to use the function history.push() on an inappropriate object or in an unsupported context.
The history.push() function is used in JavaScript to navigate to a new URL and add it to the browser’s history stack. It is commonly used to implement navigation between different pages in a web application.
Here’s an example where an error might occur:
In this example, clicking the button would trigger the execution of history.push('/new-page'), which tries to add the URL ‘/new-page’ to the history stack. However, if the code is not executed in an appropriate context (e.g., within a browser environment), the error “history.push is not a function” would be thrown.
To resolve this issue, ensure that you have a proper browser context and that the history object is available. The history object is usually available within a browser window or tab.
For example, the following code snippet demonstrates the correct usage of history.push():
if (typeof history !== 'undefined' && history.push) {
// Do something with history, e.g., push a new URL
history.push('/new-page');
}
In this example, before using history.push(), a check is performed to ensure that the history object exists and has the push function. This helps prevent the error from occurring when the code is executed in an unsupported context.