82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
13 lines
623 B
JavaScript
13 lines
623 B
JavaScript
'use strict';
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var $ = require('./$')
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, isObject = require('./$.is-object')
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, HAS_INSTANCE = require('./$.wks')('hasInstance')
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, FunctionProto = Function.prototype;
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// 19.2.3.6 Function.prototype[@@hasInstance](V)
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if(!(HAS_INSTANCE in FunctionProto))$.setDesc(FunctionProto, HAS_INSTANCE, {value: function(O){
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if(typeof this != 'function' || !isObject(O))return false;
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if(!isObject(this.prototype))return O instanceof this;
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// for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
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while(O = $.getProto(O))if(this.prototype === O)return true;
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return false;
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}}); |