Running a function when enter is pressed in a text box [closed]

问题

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Closed 6 years ago.

This is my input form:

<input type="text" id="word" />

I basically want a Javascript function to execute when the person presses enter in the text box. I'm sorry if this is an obvious question, I couldn't find an existing answer that matched my needs.

回答1:

keyup() is your answer:

$('#word').keyup(function(e) {
    if(e.which == 13) {
        // Do your stuff
    }
});

e.which returns the scan/character code of the pressed key. 13 is for ENTER.

You can find other codes here.

回答2:

$('#word').on('keyup', function(e){
  if(e.which === 13){
    // User pressed enter
  }
});

Testing the event which property will tell you what key the user has pressed.
which is normalized by jQuery, so you won't have any cross-browser issues.

来源：https://stackoverflow.com/questions/13793550/running-a-function-when-enter-is-pressed-in-a-text-box