To get JavaScript to disregard uppercase letters, you'll need to convert all letters in a string to the same case (either lowercase or uppercase) so that they can be compared as equal. You can achieve this using the toLowerCase() or toUpperCase() method in JavaScript.

Here's an example in JavaScript:

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let string1 = "Hello World";
let string2 = "heLLo wORld";

if (string1.toLowerCase() === string2.toLowerCase()) {
  console.log("The strings are equal!");
} else {
  console.log("The strings are different.");
}

This code will output "The strings are equal!" because we're converting both string1 and string2 to lowercase before comparing them. By converting them to lowercase, we've made the comparison case-insensitive.

Assuming this is a question about JavaScript:

To make an alert case-insensitive, you can convert the string to lowercase or uppercase before checking it. Here's an example using the toLowerCase() method:

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let userInput = prompt("Enter a word:");
if (userInput.toLowerCase() === "hello") {
  alert("You entered 'hello'!");
} else {
  alert("You entered something else.");
}

In this example, the toLowerCase() method is used to convert the userInput string to lowercase before checking if it is equal to the string "hello". This means that even if the user enters "HELLO" or "Hello", the alert will still trigger.

To ignore upper and lower case in a prompt variable, you can use the toLowerCase() or toUpperCase() method in JavaScript. This method converts a string to all lowercase or all uppercase letters.

Here is an example of how to ignore upper and lower case when comparing a variable in JavaScript using toLowerCase():

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let promptVariable = "Hello";
if (promptVariable.toLowerCase() === "hello") {
  console.log("The promptVariable is 'hello', ignoring case.");
} else {
  console.log("The promptVariable is NOT 'hello'.");
}

This will output: "The promptVariable is 'hello', ignoring case." regardless of whether the user inputs "Hello", "hello", or "HeLlO".

Similarly, you can use toUpperCase() instead of toLowerCase() to convert a string to all uppercase letters.

To ignore case in JavaScript, you can use one of the following methods:

1. The toLowerCase() or toUpperCase() methods: These methods convert a string to all lowercase or uppercase characters, allowing you to perform case-insensitive comparisons. For example:

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let string1 = "Hello";
let string2 = "HELLO";

if (string1.toLowerCase() === string2.toLowerCase()) {
  console.log("Strings are equal");
} else {
  console.log("Strings are not equal");
}

1. The i flag with Regular Expressions: You can use regular expressions with the i flag to perform a case-insensitive search. For example:

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let string = "Hello World";
let regex = /hello/i;

if (string.match(regex)) {
  console.log("Match found");
} else {
  console.log("Match not found");
}

Both methods allow case-insensitive comparisons in JavaScript.

In Javascript, you can make an input in a prompt statement case insensitive by using the toLowerCase() method. For example:

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let input = prompt("Enter something").toLowerCase();

By adding the .toLowerCase() method to the end of the prompt statement, the input is automatically converted to all lowercase, despite the user typing in uppercase or lowercase characters.

In Javascript, you can make a prompt case-insensitive by using the String.prototype.toLowerCase method. For example:

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let input = prompt("Please enter value");
let cInput = input.toLowerCase();

The first line asks for user input and stores the result in input, then the second line stores the user answer in cInput, after being changed from any case type to lowerCase.

More information on the toLowerCase method can be found here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase