javascript check string case insensitive code example

Example 1: Javascript case insensitive string comparison

var name1 = "Taylor Johnson";
var name2 ="taylor johnson";

//convert to lowercase for case insensitive comparison
if(name1.toLowerCase() === name2.toLowerCase()){
    //names are the same
}

Example 2: compare string camelcase and lowercase javascript

str.toUpperCase() === str || str.toLowerCase() === str;

Example 3: javascript string search case insensitive

function stringContainsCaseInsensitive(search, subject){
    return subject.toLowerCase().indexOf(search.toLowerCase()) !== -1;
}

stringContainsCaseInsensitive("red","We painted the room red.");//true