SyntaxError: Unexpected token = (Regression in 0.4.0)

[João Vieira]

Hello,

After updating from 0.3.3 to 0.4.0 I started getting this error when importing lru_map. Using node 10.21.0.

...node_modules/lru_map/dist/lru.js:1
!function(g,c){typeof exports=="object"&&typeof module!="undefined"?c(exports):typeof define=="function"&&define.amd?define(["exports"],c):c((g=g||self).lru_map=g.lru_map||{})}(this,function(g){const c=Symbol("newer"),e=Symbol("older");class n{constructor(a,b){typeof a!=="number"&&(b=a,a=0),this.size=0,this.limit=a,this.oldest=this.newest=void 0,this._keymap=new Map(),b&&(this.assign(b),a<1&&(this.limit=this.size))}_markEntryAsUsed(a){if(a===this.newest)return;a[c]&&(a===this.oldest&&(this.oldest=a[c]),a[c][e]=a[e]),a[e]&&(a[e][c]=a[c]),a[c]=void 0,a[e]=this.newest,this.newest&&(this.newest[c]=a),this.newest=a}assign(a){let b,d=this.limit||Number.MAX_VALUE;this._keymap.clear();let m=a[Symbol.iterator]();for(let h=m.next();!h.done;h=m.next()){let f=new l(h.value[0],h.value[1]);this._keymap.set(f.key,f),b?(b[c]=f,f[e]=b):this.oldest=f,b=f;if(d--==0)throw new Error("overflow")}this.newest=b,this.size=this._keymap.size}get(a){var b=this._keymap.get(

SyntaxError: Unexpected token =
    at Module._compile (internal/modules/cjs/loader.js:723:23)
    at Module._compile (/Users/vieira/Code/platform/node_modules/pirates/lib/index.js:99:24)
    at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Object.newLoader [as .js] (/Users/vieira/Code/platform/node_modules/pirates/lib/index.js:104:7)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)

[Rasmus]

This should only be a problem when using the js file from source with a strict parser. The NPM version is compiled by esbuild from the source. I've applied the pr which should fix this for you but ideally it might be better to either use it from npm or to use a compiler like typescript or esbuild.