There are three ways to submit form forms in js. One is to use the submit button to submit and trigger the onclick event. The other is to use the button button to submit. The other is to use the submit button to submit, but trigger onsubmit first. event.
JS code implementation for submitting form form:
1. Use the submit button to implement submission. When the submit button is clicked, the onclick event is triggered, and the function in JavaScript determines whether the input content is empty. If If it is empty, return false and do not submit. If it is not empty, submit it to the address specified by action.
2. Use the button button to implement submission. When the button button is clicked, the onclick event is triggered. The function in JavaScript determines whether the input content is empty. If it is empty, it returns false and does not submit. If it is not empty, , submit to the address specified by action. Since the button button does not have the function of automatic submission, form submission is directly implemented by js.
3. Use the submit button to implement submission. When the submit button is clicked, the onsubmit event is triggered first. The function in JavaScript determines whether the input content is empty. If it is empty, it returns false and does not submit. If it is not If empty, submit to the address specified by action.
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