Incorporate HTML and JavaScript to dynamically show a button when a specified condition evaluates as true and hide the button if the

Question

Incorporate HTML and JavaScript to dynamically show a button when a specified condition evaluates as true and hide the button if the

I need help with a scenario where I want to show a button only when a specific variable reaches a certain value. For instance, if the variable equals 5, the button should be displayed; otherwise, it should be hidden. Here are the two buttons included within a div:

 <div style="z-index: 999; position: fixed">
        <button id="speedbtn">Change speed</button>
        <button id="jmpbtn">Change jump power</button>
      </div>

My goal is to have these buttons visible only when the variable is set to 5. If the variable has any other value, the buttons should not be displayed.

javascript html css button

Answer 1

Answer №1

To adjust the button display style based on a variable value, utilize an if statement in your JavaScript code.

var num = 8;

if(num < 10) {
  document.getElementById("playbtn").style.display = "none";
  document.getElementById("pausebtn").style.display = "none";
} else {
  document.getElementById("playbtn").style.display = "";
  document.getElementById("pausebtn").style.display = "";
}

<div style="z-index: 999; position: fixed">
  <button id="playbtn">Play</button>
  <button id="pausebtn">Pause</button>
</div>

Answer 2

To adjust the button display style based on a variable value, utilize an if statement in your JavaScript code.

var num = 8;

if(num < 10) {
  document.getElementById("playbtn").style.display = "none";
  document.getElementById("pausebtn").style.display = "none";
} else {
  document.getElementById("playbtn").style.display = "";
  document.getElementById("pausebtn").style.display = "";
}

<div style="z-index: 999; position: fixed">
  <button id="playbtn">Play</button>
  <button id="pausebtn">Pause</button>
</div>

Answer 3

Answer №2

Create a variable called your_default_var and set it to 5.
Call the check function with your_default_var as an argument.
Define a function named set that takes a number (num) as a parameter:
 Inside the function, assign the value of num to a new variable called yes_no.
 Call the check function with yes_no as an argument.
Create a check function that takes a variable (your_var) as input:
 If your_var is equal to 5, display the speedbtn and jmpbtn buttons by changing their style properties to block.
 If your_var is greater than 5 or less than 5, hide the speedbtn and jmpbtn buttons by changing their style properties to none.

<div style="z-index: 999; position: fixed">
        <button id="speedbtn">Change speed</button>
        <button id="jmpbtn">Change jump power</button>
      <button onclick="set(6);">Set var to 6</button>
<button onclick="set(5);">Set var to 5</button>
<button onclick="set(4);">Set var to 4</button>
      </div>

Give it a try!

Answer 4

Create a variable called your_default_var and set it to 5.
Call the check function with your_default_var as an argument.
Define a function named set that takes a number (num) as a parameter:
 Inside the function, assign the value of num to a new variable called yes_no.
 Call the check function with yes_no as an argument.
Create a check function that takes a variable (your_var) as input:
 If your_var is equal to 5, display the speedbtn and jmpbtn buttons by changing their style properties to block.
 If your_var is greater than 5 or less than 5, hide the speedbtn and jmpbtn buttons by changing their style properties to none.

<div style="z-index: 999; position: fixed">
        <button id="speedbtn">Change speed</button>
        <button id="jmpbtn">Change jump power</button>
      <button onclick="set(6);">Set var to 6</button>
<button onclick="set(5);">Set var to 5</button>
<button onclick="set(4);">Set var to 4</button>
      </div>

Give it a try!

Incorporate HTML and JavaScript to dynamically show a button when a specified condition evaluates as true and hide the button if the

Answer №1

Answer №2

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