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document.write(lowerToUpper_1("Hello World. I Am Here to help YOU!")+"<br />");
document.write(lowerToUpper_2("Hello World. I Am Here to help YOU!")+"<br />");
function lowerToUpper_1(string) {
// Get the length of the input string
var len = string.length;
// Iterate through each character in the input string
for (var i = 0; i < len; i++) {
// Check if the current character is lowercase
if (string[i] === string[i].toLowerCase()) {
// Extract the characters before and after the current character
// convert the current character to uppercase
// concatenate the characters before, the uppercase current character and the characters after
// Reassign the modified string to the original string
string = string.substr(0, i) + string[i].toUpperCase() + string.substr(i + 1);
} else {
// Extract the characters before and after the current character
// convert the current character to lowercase
// concatenate the characters before, the lowercase current character and the characters after
// Reassign the modified string to the original string
string = string.substr(0, i) + string[i].toLowerCase() + string.substr(i + 1);
}
}
// Return the modified string
return string;
}
function lowerToUpper_2(string) {
// Initialize an empty string to store the result
let res = "";
// Iterate through each character in the input string
for (let i = 0; i < string.length; i++) {
// Check if the current character is lowercase
if (string[i] === string[i].toLowerCase()) {
// Convert the character to uppercase and append it to the result string
res += string[i].toUpperCase();
} else {
// Convert the character to lowercase and append it to the result string
res += string[i].toLowerCase();
}
}
// Return the result string
return res;
}
Also see: Tab Triggers