mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-01 07:47:49 +00:00
Improve _.isEqual performance.
Former-commit-id: d705b29825eff419ac14806f0a5fcf7c7458c6de
This commit is contained in:
47
lodash.js
47
lodash.js
@@ -1303,19 +1303,14 @@
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* // => true
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*/
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function isEqual(a, b, stackA, stackB) {
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// a strict comparison is necessary because `null == undefined`
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if (a == null || b == null) {
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return a === b;
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}
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// exit early for identical values
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if (a === b) {
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// treat `+0` vs. `-0` as not equal
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return a !== 0 || (1 / a == 1 / b);
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}
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// unwrap any `lodash` wrapped values
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if (objectTypes[typeof a] || objectTypes[typeof b]) {
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a = a.__wrapped__ || a;
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b = b.__wrapped__ || b;
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// a strict comparison is necessary because `null == undefined`
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if (a == null || b == null) {
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return a === b;
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}
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// compare [[Class]] names
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var className = toString.call(a);
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@@ -1347,11 +1342,27 @@
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if (noArgsClass && !isArr && (isArr = isArguments(a)) && !isArguments(b)) {
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return false;
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}
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// exit for functions and DOM nodes
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if (!isArr && (className != objectClass || (noNodeClass && (
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(typeof a.toString != 'function' && typeof (a + '') == 'string') ||
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(typeof b.toString != 'function' && typeof (b + '') == 'string'))))) {
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return false;
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if (!isArr) {
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// unwrap any `lodash` wrapped values
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if (a.__wrapped__ || b.__wrapped__) {
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return isEqual(a.__wrapped__ || a, b.__wrapped__ || b);
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}
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// exit for functions and DOM nodes
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if (className != objectClass || (noNodeClass && (
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(typeof a.toString != 'function' && typeof (a + '') == 'string') ||
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(typeof b.toString != 'function' && typeof (b + '') == 'string')))) {
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return false;
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}
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var ctorA = a.constructor,
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ctorB = b.constructor;
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// non `Object` object instances with different constructors are not equal
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if (ctorA != ctorB && !(
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isFunction(ctorA) && ctorA instanceof ctorA &&
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isFunction(ctorB) && ctorB instanceof ctorB
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)) {
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return false;
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}
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}
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// assume cyclic structures are equal
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@@ -1392,16 +1403,6 @@
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return result;
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}
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var ctorA = a.constructor,
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ctorB = b.constructor;
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// non `Object` object instances with different constructors are not equal
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if (ctorA != ctorB && !(
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isFunction(ctorA) && ctorA instanceof ctorA &&
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isFunction(ctorB) && ctorB instanceof ctorB
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)) {
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return false;
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}
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// deep compare objects
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for (var prop in a) {
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if (hasOwnProperty.call(a, prop)) {
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60
lodash.min.js
vendored
60
lodash.min.js
vendored
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:(f?"":",__d="+a+"."+a+"||"+a)+";")+u+"return __p}";try{i=Function("_","return "+u)(p)}catch(l){throw l.source=u,l}return t?i(t):(i.source=u,i)},p.throttle=function(e,t){function n(){a=new Date,u=r,s=e.apply(o,i)}var i,s,o,u,a=0;return function(){var r=new Date,f=t-(r-a);return i=arguments,o=this,0>=f?(Et(u),a=r,s=e.apply(o,i)):u||(u=St(n,f)),s}},p.times=function(e,t,n){for(var e=+e||0,r=-1,i=Array(e);++r<e;)i[r]=t.call(n,r);return i},p.toArray=function(e){if(!e)return[];var t=e.length;return t===+
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t?"string"==typeof e?e.split(""):ot.call(e):k(e)},p.unescape=function(e){return e==r?"":(e+"").replace(K,w)},p.union=function(){for(var e=-1,t=nt.apply(W,arguments),n=t.length,r=[];++e<n;){var i=t[e];0>B(r,i)&&r.push(i)}return r},p.uniq=I,p.uniqueId=function(e){var t=V++;return e?e+t:t},p.values=k,p.where=function(e,t){var r=[];h(t,function(e,t){r.push(t)});var i=r.length,s=[];return u(e,function(e){for(var o=n,u=0;u<i&&(o=r[u],o=e[o]===t[o]);u++);o&&s.push(e)}),s},p.without=function(e){for(var t=-1
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module&&module&&module.exports==z?(module.exports=p)._=p:z._=p:e._=p})(this);
|
||||
Reference in New Issue
Block a user