@theguild/federation-composition
Version:
Open Source Composition library for Apollo Federation
27 lines (26 loc) • 981 B
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.andList = andList;
function andList(items, commaBeforeConjunction = true, wrapper) {
return formatList('and', items, commaBeforeConjunction, wrapper);
}
function formatList(conjunction, items, commaBeforeConjunction = true, wrapper) {
if (items.length === 0) {
return '';
}
switch (items.length) {
case 1:
return withWrapper(items[0], wrapper);
case 2:
return (withWrapper(items[0], wrapper) + ' ' + conjunction + ' ' + withWrapper(items[1], wrapper));
}
const allButLast = items.slice(0, -1).map(item => withWrapper(item, wrapper));
const lastItem = withWrapper(items.at(-1), wrapper);
return (allButLast.join(', ') + (commaBeforeConjunction ? ', ' : ' ') + conjunction + ' ' + lastItem);
}
function withWrapper(text, wrapper) {
if (!wrapper) {
return text;
}
return wrapper + text + wrapper;
}