Angular equivalent of jQuery $.map?

Question

I'm transitioning from relying on jQuery to building apps in AngularJS. It's recommended in a number of places to not mix jQuery and Angular code.

One thing I miss though is the jQuery $.map function for arrays. I know this could be re-written using the native Javascript map function, but this is not implemented in all browsers (notably, IE < v9).

So, is there an Angular equivalent, or should I got back to writing for (var x = 0; x < foo; x += 1) {...} so I can stop including jQuery?

UPDATE Sometimes knowing what to search for is all you need. Bergie says 'look for polyfills'. Here's a reference guide (from the Modernizr crew) for a bunch of resources for making modern code work on older browsers: HTML5 Cross Browser Polyfills

Answer 1

Check here: https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/map

Mozilla has supplied an Array.map polyfill for unsupported browsers

if (!Array.prototype.map) {   Array.prototype.map = function(callback, thisArg) {      var T, A, k;      if (this == null) {       throw new TypeError(" this is null or not defined");     }      // 1. Let O be the result of calling ToObject passing the |this| value as the argument.     var O = Object(this);      // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".     // 3. Let len be ToUint32(lenValue).     var len = O.length >>> 0;      // 4. If IsCallable(callback) is false, throw a TypeError exception.     // See: http://es5.github.com/#x9.11     if (typeof callback !== "function") {       throw new TypeError(callback + " is not a function");     }      // 5. If thisArg was supplied, let T be thisArg; else let T be undefined.     if (thisArg) {       T = thisArg;     }      // 6. Let A be a new array created as if by the expression new Array(len) where Array is     // the standard built-in constructor with that name and len is the value of len.     A = new Array(len);      // 7. Let k be 0     k = 0;      // 8. Repeat, while k < len     while(k < len) {        var kValue, mappedValue;        // a. Let Pk be ToString(k).       //   This is implicit for LHS operands of the in operator       // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.       //   This step can be combined with c       // c. If kPresent is true, then       if (k in O) {          // i. Let kValue be the result of calling the Get internal method of O with argument Pk.         kValue = O[ k ];          // ii. Let mappedValue be the result of calling the Call internal method of callback         // with T as the this value and argument list containing kValue, k, and O.         mappedValue = callback.call(T, kValue, k, O);          // iii. Call the DefineOwnProperty internal method of A with arguments         // Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true},         // and false.          // In browsers that support Object.defineProperty, use the following:         // Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true });          // For best browser support, use the following:         A[ k ] = mappedValue;       }       // d. Increase k by 1.       k++;     }      // 9. return A     return A;   };       }