- Lowercase / Uppercase
my_string.toUpperCase()
my_string.toLowerCase() - Find first occurrence of substring
my_string.indexOf()
my_string.lastIndexOf() - Return a portion of your string by indexes
string.slice(start, end);
Indexes can be negative so you start counting from the end of the string - Find index using regular expressions
my_regular_expression = /To be/;
my_string = “To be or not to be”;
sub_str_index = my_string.search(my_regular_expression); // Finds the first occurrence index of the reg expr string, or -1 if not found - Replacing text
date = ‘10.28.2008’;
replaceRegEx = /./g; Looking for a “.” g for globally and not just the first instance
date.replace(replaceRegex, ‘/’); Replace “.” with /
Categories