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kata.js
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kata.js
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// #1
// const sizes = {
// xs: 34,
// s: 36,
// m: 38,
// l: 40,
// xl: 42,
// };
// function sizeToNumber(size) {
// if (sizes.hasOwnProperty(size)) return sizes[size];
// let re = new RegExp(/[x]+[s|l]/, "gi");
// if (re.test(size)) {
// let i = size[size.length - 1];
// if (i == "s") {
// return sizes[i] - (size.length - 1) * 2;
// }
// if (i == "l") {
// return sizes[i] + (size.length - 1) * 2;
// }
// }
// return null;
// }
// #2
function sizeToNumber(size) {
if (size == "s") return 36;
if (size == "m") return 38;
if (size == "l") return 40;
const x = size.match(/x/g)?.length;
if (/^x+s$/.test(size)) return 36 - x * 2;
if (/^x+l$/.test(size)) return 40 + x * 2;
return null;
}
console.log(sizeToNumber("s")); // 36, "Small size"
console.log(sizeToNumber("m")); // 38, "Medium size"
console.log(sizeToNumber("l")); // 40, "Large size"
console.log(sizeToNumber("xl")); // 42, "Extra large"
console.log(sizeToNumber("xs")); // 34, "Extra small
console.log(sizeToNumber("xxxs")); // 30, "4-extra small"
console.log(sizeToNumber("xxxl")); // 46, "4-extra large"
// null
console.log(sizeToNumber("")); // "Blank string is invalid"
console.log(sizeToNumber("xm")); // "Cannot apply modifier for medium size (xm)"
console.log(sizeToNumber("xxxm")); // "Cannot apply modifier for medium size (xxxm)"
console.log(sizeToNumber("xxxx")); // "No base size provided (xxxx)"
console.log(sizeToNumber("ssss")); // "Only one base size is allowed ('ssss')"
console.log(sizeToNumber("hello world")); // "Any other text is invalid ('hello world')"
console.log(sizeToNumber("sm")); // "Cannot have two bases ('sm')"
console.log(sizeToNumber("ml")); // "Cannot have two bases ('ml')"
console.log(sizeToNumber("lm")); // "Cannot have two bases ('lm')"