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Ignore case sensitive in javascript
In JavaScript, you can convert all letters in a string to lowercase or uppercase using the toLowerCase() and toUpperCase() methods respectively. This allows you to ignore case sensitivity when comparing strings. Here is an example:
javascript Copy code
let string1 = "Hello World";
let string2 = "hello world";
if (string1.toLowerCase() === string2.toLowerCase()) {
console.log("The strings are equal, ignoring case.");
} else {
console.log("The strings are not equal, considering case.");
}
This code converts both strings to lowercase before comparing them. As a result, the conditional statement will evaluate to true, and "The strings are equal, ignoring case." will be printed to the console.
Ignore case in Javascript
To ignore case in JavaScript, you can use one of the following methods:
toLowerCase() or toUpperCase() methods:
These methods convert a string to all lowercase or uppercase characters, allowing you to perform case-insensitive comparisons. For example:javascript Copy code
let string1 = "Hello";
let string2 = "HELLO";
if (string1.toLowerCase() === string2.toLowerCase()) {
console.log("Strings are equal");
} else {
console.log("Strings are not equal");
}
i flag with Regular Expressions:
You can use regular expressions with the i flag to perform a case-insensitive search. For example:javascript Copy code
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.
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