Javascript-Form Wizard function in the website

For example, this is the Form Wizard function. After the content of each wizard module is entered correctly, how can this function be automatically saved? What do you think is the logic of this Form Wizard, little is that cainiao is very knowledgeable.

For example, this is the Form Wizard function. After the content of each wizard module is entered correctly, how can this function be automatically saved? What do you think is the logic of this Form Wizard, little is that cainiao is very knowledgeable.

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For example, this is the Form Wizard function. After the content of each wizard module is entered correctly, how can this function be automatically saved? What do you think is the logic of this Form Wizard, little is that cainiao is very knowledgeable.

Automatic storage: you can confirm that the data is stored locally after the user input is complete.

You can bind an onchange event to each field to trigger the save draft, or execute the save draft at a fixed interval. You can only save the draft automatically. It is not possible to submit the form automatically. All the verifications meet the requirements of the non-certifiers and the content does not need to be modified.

You can use either of the following methods:
1. Local localstorage, but this method is not valid for earlier ie versions;
2. The server performs session storage. Each step requests a network, and the storage server can

Html5 localstorage