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JavaScript ¶ÁÈ¡ JSON


JSON:
[{"subjecttypeId":"1","subjectName":"67","scope":"1",},{"subjecttypeId":"1","subjectName":"345","scope":"1"}]
JavaScript:
       var result = window.eval('(' + JSON+ ')');

for(var p in result){

result[p].subjectName;

alert(result[p].subjectName);

         }


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[·­Òë]High Performance JavaScript(017)

A Note on Benchmarking  ²âÊÔ»ù׼˵Ã÷
    Because a regex's performance can be wildly different depending on the text it's applied to, there's no straightforward way to benchmark regexes against each other. For the best result, you need to benchmark your regexes on test strings o ......

[·­Òë]High Performance JavaScript(018)

String Trimming  ×Ö·û´®ÐÞ¼ô
    Removing leading and trailing whitespace from a string is a simple but common task. Although ECMAScript 5 adds a native string trim method (and you should therefore start to see this method in upcoming browsers), JavaScript has not historically in ......

[·­Òë]High Performance JavaScript(019)

µÚÁùÕ  Responsive Interfaces  ÏìÓ¦½Ó¿Ú
    There's nothing more frustrating than clicking something on a web page and having nothing happen. This problem goes back to the origin of transactional web applications and resulted in the now-ubiquitous "please click only once" m ......

[·­Òë]High Performance JavaScript(020)

Yielding with Timers  Óö¨Ê±Æ÷Èóöʱ¼äƬ
    Despite your best efforts, there will be times when a JavaScript task cannot be completed in 100 milliseconds or less because of its complexity. In these cases, it's ideal to yield control of the UI thread so that UI updates may occur ......

JavaScript±à³Ì±Ê¼Ç

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<script>
 //¼ì²éÊÇ·ñΪÈÎÒâÊý£¨ÊµÊý£©
function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
 //¼ ......
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