Verify in JavaScript or Vue 2 if the combination of pressing the Shift key and a letter key simultaneously

Question

Verify in JavaScript or Vue 2 if the combination of pressing the Shift key and a letter key simultaneously

How can I detect if the Shift key along with a letter is pressed while using lodash's debounce?

fetchDebounced: _.debounce(function(e) {
  if (e.keyCode === 16 && e.keyCode >= 46 && e.keyCode <= 90) {
    console.log('shift + letter is pressed')
  }
}

I am facing issues with this code when using it on the keyup event. I only want to display a console message if SHIFT+LETTER combination, like Shift+a or Shift+z, is pressed. Is there a solution for this?

javascript vue.js

Answer 1

Answer №1

To detect the combination of shift key and a specific key, you can utilize the onkeydown event along with e.shiftKey:

document.onkeydown = function(e) {
  if (e.shiftKey && e.keyCode >= 46 && e.keyCode <= 90) {
    console.log("SHIFT + " + e.keyCode);
    return false;
  }
}

Answer 2

To detect the combination of shift key and a specific key, you can utilize the onkeydown event along with e.shiftKey:

document.onkeydown = function(e) {
  if (e.shiftKey && e.keyCode >= 46 && e.keyCode <= 90) {
    console.log("SHIFT + " + e.keyCode);
    return false;
  }
}

Answer 3

Answer №2

According to this particular response:

event.shiftKey functions as a boolean, returning true if the Shift key is currently pressed and false if it is not. The altKey and ctrlKey properties operate in a similar manner.

In essence, all you need to do is detect the keydown event using onkeydown, and then examine these properties as necessary.

Answer 4

According to this particular response:

event.shiftKey functions as a boolean, returning true if the Shift key is currently pressed and false if it is not. The altKey and ctrlKey properties operate in a similar manner.

In essence, all you need to do is detect the keydown event using onkeydown, and then examine these properties as necessary.

Answer 5

Answer №3

If you want to achieve the desired outcome, consider using a combination of shift key press and checking the key code between 65-90 (A-Z) on key up event to monitor as one event

function checkCode(e) {
    if(e.shiftKey){
    console.log(e.shiftKey && (e.keyCode >= 65 || e.keyCode <= 90))      
    }
}

<input onkeyup = "checkCode(event)" />

Check out the example on Codepen - https://codepen.io/nagasai/pen/NVqMOg

Answer 6

If you want to achieve the desired outcome, consider using a combination of shift key press and checking the key code between 65-90 (A-Z) on key up event to monitor as one event

function checkCode(e) {
    if(e.shiftKey){
    console.log(e.shiftKey && (e.keyCode >= 65 || e.keyCode <= 90))      
    }
}

<input onkeyup = "checkCode(event)" />

Check out the example on Codepen - https://codepen.io/nagasai/pen/NVqMOg

Answer 7

Answer №4

Thanks to the engagement of individuals, this particular response stands out as top-notch in reference to an inquiry that was previously brought up.

...onkeyup = function(e) {
    if (e.keyCode == 13)
    {
//      if (e.shiftKey === true)
        if (e.shiftKey)  // thruthy
        {
            // new line
        }
        else
        {
            // your function runs here
        }
        return false;
    }
}

It's also worth noting the contribution from Das_Geek which mentions that altKey and ctrlKey operate similarly, as per the invaluable insights of Niet the Dark Absol.

Answer 8

Thanks to the engagement of individuals, this particular response stands out as top-notch in reference to an inquiry that was previously brought up.

...onkeyup = function(e) {
    if (e.keyCode == 13)
    {
//      if (e.shiftKey === true)
        if (e.shiftKey)  // thruthy
        {
            // new line
        }
        else
        {
            // your function runs here
        }
        return false;
    }
}

It's also worth noting the contribution from Das_Geek which mentions that altKey and ctrlKey operate similarly, as per the invaluable insights of Niet the Dark Absol.

Verify in JavaScript or Vue 2 if the combination of pressing the Shift key and a letter key simultaneously

Answer №1

Answer №2

Answer №3

Answer №4

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