Question
On Firefox and Chrome how to run JS codes using browser console ?
Note : Following examples are tested on FireFox Version 52.
Open Web browser console. F12
Method 1 . Press F12 and click on "Console"
Method 2 . Press Ctrl + Shift + K
Example 1. Test the console.
Type alert('Hello');
this will open a "Hello" dialog box.
Example 2. Change input value by ID. ()
document.getElementById("the_element_id").value
Example 3. Change all inputs (checkbox) start with 'variable' to 'checked'
Note : I use this example to activate features on Drupal 7
var eles = [];
var inputs = document.getElementsByTagName("input");
for(var i = 0; i < inputs.length; i++) {
if(inputs[i].name.indexOf('variable') == 0) {
inputs[i].checked = 'checked';
}
}
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