My dilemma with extracting currency symbols:
var str1 = '10.00 €';
var str2 = '12.22 $';
I attempted to create a function that would only retrieve the currency symbol:
function extractCurrencySymbol(str){
return str.replace(/[0-9.,]/g, '');
}
However, this function only removes digits and punctuation, leaving me unable to get the currency symbol. Any suggestions on how to achieve this?
If we utilize a regular expression to strip away all other characters (numbers, periods, commas, spaces), we will be left solely with the currency symbols
var example1 = '10,00 €';
var example2 = '12.22 $';
function extractCurrencySymbol(str) {
//eliminate all numbers, spaces, commas, and periods by replacing them with an empty string
//the result should only be the currency symbols
return str.replace(/[\d\., ]/g, '');
}
console.log(extractCurrencySymbol(example1));
console.log(extractCurrencySymbol(example2));Simply select the final character in the given string
function getLastCharacter(str) {
return str.trim().charAt(str.length - 1);
}
If you're looking to extract the last character from a string to get the symbol you need, a simple function can do the trick. Since Javascript treats strings as character arrays, you can easily access the last character using the length of the string like this:
function extractSymbol(str){
return str[str.length-1];
}
I hope this solution proves useful to you! Thank you
The functionality of the Number() method is to convert any data input into an integer. However, if you pass symbols and spaces into it, such as '10,00 €', it will return NaN.
To extract only the symbol from a string in JavaScript, there are built-in methods that can be used together to handle this easily.
If the position of the symbol is known, we can retrieve the symbol at that position using the charAt() method.
function knownLocation(s) {
return s.charAt(s.length - 1)
}
If the position of the symbol is unknown, but its presence is known, we can utilize the .includes method to check for the symbol and return the character at the index.
function knownValue(s) {
if (s.includes("$")) {
return s.charAt(s.indexOf("$"))
} else if (s.includes("€")) {
return s.charAt(s.indexOf("€"))
} else {
return undefined
}
}
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