So I have here some JS code for getting either a singular value or, if there's a 'range' of prices separated by ' - ', getting the highest value:
function getPrice() {
var str = ("£25 - £36");
var val;
if (str.indexOf('-') > -1) {
val = Number(str.replace(/[^0-9.-]+/g, "").split('-')[1], 10);
} else {
val = Number(str.replace(/[^0-9.-]+/g, "").split('-')[0], 10);
}
return val;
}
How would I modify this so that it gets the lowest value instead?
This 'range' will always be either in the format of £25 or £13 - £72 and it will always be in pounds. The highest value will always be the last; in this context they are functionally the same.
One way to achieve what you require would be to use a Regex to pull out all the figures in the string. You can then apply those matches to Math.min to find the lowest one.
The benefit of this approach is that it will retrieve the lowest number regardless of its position in the string.
function getLowestPrice(input) {
let amounts = input.match(/\d{1,3}(,\d{3})*(\.\d+)?/g);
amounts = amounts.map(v => v.replace(',', '')); // remove comma grouping
return Math.min.apply(this, amounts);
}
console.log(getLowestPrice('£25 - £36')); // = 25
console.log(getLowestPrice('£1,090.99 - £77.25')); // = 77.25Edit - I just expanded the Regex to handle values containing thousands grouping and decimals, credit to this answer for that.