JavaScript | Pass string parameter in onClick function
The task is to pass a string as a parameter on onClick function using javascript, we’re going to discuss few techniques.
Example 1: This example simply put the argument which is string in the onClick attribute of the button which calls a function with a string as an argument using onClick() method.
<!DOCTYPE HTML> <html> <head> <title> JavaScript | Pass string parameter in onClick function. </title> </head> <body style="text-align:center;" id="body"> <h1 style="color:green;"> GeeksForGeeks </h1> <p id="GFG_UP" style="font-size: 19px; font-weight: bold;"> </p> <button onclick="GFG_Fun('Parameter'); "> click here </button> <p id="GFG_DOWN" style="color: green; font-size: 24px; font-weight: bold;"> </p> <script> var up = document.getElementById('GFG_UP'); var down = document.getElementById('GFG_DOWN'); up.innerHTML = 'Click on button to pass the '+ 'string parameter to the function'; function GFG_Fun(parameter) { down.innerHTML = "String '" + parameter + "' Received"; } </script> </body> </html> |
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Output:
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Before clicking on the button:
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After clicking on the button:
Example 2: This example simply put the argument which is a string in the onClick attribute of the button which calls a function with string as an argument using onClick() method. Here the input button is created dynamically. This example uses the same approach as the previous one.
<!DOCTYPE HTML> <html> <head> <title> JavaScript | Pass string parameter in onClick function. </title> </head> <body style="text-align:center;" id="body"> <h1 style="color:green;"> GeeksForGeeks </h1> <p id="GFG_UP" style="font-size: 19px; font-weight: bold;"> </p> <p id="GFG_DOWN" style="color: green; font-size: 24px; font-weight: bold;"> </p> <script> var up = document.getElementById('GFG_UP'); var down = document.getElementById('GFG_DOWN'); var inputEl = document.createElement('input'); inputEl.type = 'button'; inputEl.value = "Click here"; inputEl.addEventListener('click', function() { GFG_Fun('Parameter'); }); document.body.insertBefore(inputEl, down); up.innerHTML = 'Click on button to pass the '+ 'string parameter to the function'; function GFG_Fun(parameter) { down.innerHTML = "String '" + parameter + "' Received"; } </script> </body> </html> |
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Output:
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Before clicking on the button:
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After clicking on the button:
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