How to sort an object array by date property?

Simplest Answer

array.sort(function(a,b){  // Turn your strings into dates, and then subtract them  // to get a value that is either negative, positive, or zero.  return new Date(b.date) - new Date(a.date);});

More Generic Answer

array.sort(function(o1,o2){  if (sort_o1_before_o2)    return -1;  else if(sort_o1_after_o2) return  1;  else                      return  0;});

Or more tersely:

array.sort(function(o1,o2){  return sort_o1_before_o2 ? -1 : sort_o1_after_o2 ? 1 : 0;});

Generic, Powerful Answer

Define a custom non-enumerable sortBy function using a Schwartzian transform on all arrays :

(function(){  if (typeof Object.defineProperty === 'function'){    try{Object.defineProperty(Array.prototype,'sortBy',{value:sb}); }catch(e){}  }  if (!Array.prototype.sortBy) Array.prototype.sortBy = sb;  function sb(f){    for (var i=this.length;i;){      var o = this[--i];      this[i] = [].concat(f.call(o,o,i),o);    }    this.sort(function(a,b){      for (var i=0,len=a.length;i<len;++i){        if (a[i]!=b[i]) return a[i]<b[i]?-1:1;      }      return 0;    });    for (var i=this.length;i;){      this[--i]=this[i][this[i].length-1];    }    return this;  }})();

Use it like so:

array.sortBy(function(o){ return o.date });

If your date is not directly comparable, make a comparable date out of it, e.g.

array.sortBy(function(o){ return new Date( o.date ) });

You can also use this to sort by multiple criteria if you return an array of values:

// Sort by date, then score (reversed), then namearray.sortBy(function(o){ return [ o.date, -o.score, o.name ] };

See http://phrogz.net/JS/Array.prototype.sortBy.js for more details.

@Phrogz answers are both great, but here is a great, more concise answer:

array.sort(function(a,b){return a.getTime() - b.getTime()});

Using the arrow function way

array.sort((a,b)=>a.getTime()-b.getTime());

found here: Sort date in Javascript

After correcting the JSON this should work for you now:

var array = [{id: 1, date:'Mar 12 2012 10:00:00 AM'}, {id: 2, date:'Mar 8 2012 08:00:00 AM'}];array.sort(function(a, b) {    var c = new Date(a.date);    var d = new Date(b.date);    return c-d;});