json-with-bigint/json-with-bigint.min.js

JS library that allows you to easily serialize and deserialize data with BigInt values

const noiseValue=/^-?\d+n+$/,originalStringify=JSON.stringify,originalParse=JSON.parse;export const JSONStringify=(n,r,t)=>{if("rawJSON"in JSON)return originalStringify(n,((n,t)=>"bigint"==typeof t?JSON.rawJSON(t.toString()):"function"==typeof r?r(n,t):(Array.isArray(r)&&r.includes(n),t)),t);if(!n)return originalStringify(n,r,t);const i=originalStringify(n,((n,t)=>"string"==typeof t&&Boolean(t.match(noiseValue))||"bigint"==typeof t?t.toString()+"n":"function"==typeof r?r(n,t):(Array.isArray(r)&&r.includes(n),t)),t);return i.replace(/([\[:])?"(-?\d+)n"($|[,\}\]])/g,"$1$2$3").replace(/([\[:])?("-?\d+n+)n("$|"[,\}\]])/g,"$1$2$3")};export const JSONParse=(n,r)=>{if(!n)return originalParse(n,r);const t=Number.MAX_SAFE_INTEGER.toString(),i=t.length,e=/^"-?\d+n+"$/,o=/^-?\d+n$/,g=n.replace(/"(?:\\.|[^"])*"|-?(0|[1-9][0-9]*)(\.[0-9]+)?([eE][+-]?[0-9]+)?/g,((n,r,o,g)=>{const a='"'===n[0];if(a&&Boolean(n.match(e)))return n.substring(0,n.length-1)+'n"';const s=o||g,l=r&&(r.length<i||r.length===i&&r<=t);return a||s||l?n:'"'+n+'n"'}));return originalParse(g,((n,t,i)=>{if("string"==typeof t&&Boolean(t.match(o)))return BigInt(t.substring(0,t.length-1));return"string"==typeof t&&Boolean(t.match(noiseValue))?t.substring(0,t.length-1):"function"!=typeof r?t:r(n,t,i)}))};