Example of Form action and onSubmit
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First: action is an attribute of form. HTML5 has defined it as a required attribute value. onSubmit is an event, and a function verification is performed when submitting through <input type="submit" />. . Second: As for the order of execution, my personal understanding is that onSubmit comes first, then verification. When the verification returns false, the action="url" address cannot be reached. If it returns true or no return value is given, it passes and redirects to the URL address. Copy code The code is as follows:function check(){ var oText = document.getElementById("in").value; alert(oText); if(oText == "false"){ return false; } else { return true;} }</span> Copy code The code is as follows:<span style="font-size:14px"> <form action="table1.html" onSubmit="return check();"> <div><input type="text" id="in" /><input type="submit" value="Submit" /></div> </form></span> onSubmit="return Fun();" The return here must be written, shouldn't it be written? You can try not to write! ! ! In short: onSubmit is for verification, and action is the link address after the jump. |
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