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[·­Òë]High Performance JavaScript(023)

Data Formats  Êý¾Ý¸ñʽ
    When considering data transmission techniques, you must take into account several factors: feature set, compatibility, performance, and direction (to or from the server). When considering data formats, the only scale you need for comparison is speed.
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<script>
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function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
 //¼ ......

javascript prototype½éÉܵÄÎÄÕÂ

JavaScriptÊÇ»ùÓÚ¶ÔÏóµÄ£¬ÈκÎÔªËØ¶¼¿ÉÒÔ¿´³É¶ÔÏó¡£È»¶ø£¬ÀàÐͺͶÔÏóÊDz»Í¬µÄ¡£±¾ÎÄÖУ¬ÎÒÃdzýÁËÌÖÂÛÀàÐͺͶÔÏóµÄÒ»Ð©ÌØµãÖ®Í⣬¸üÖØÒªµÄÊÇÑо¿ÈçºÎд³öºÃµÄ²¢ÇÒÀûÓÚÖØÓõÄÀàÐÍ¡£±Ï¾¹£¬JavaScriptÕâÖÖÁ÷ÐеĽű¾ÓïÑÔÈç¹ûÄܹ»½øÐÐÁ¼ºÃµÄ·â×°£¬²¢ÐγÉÒ»¸öÅÓ´óµÄÀàÐͿ⣬¶ÔÓÚÖØÓÃÊǷdz£ÓÐÒâÒåµÄ¡£
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jLayout — JavaScript Layout Algorithms


The jLayout JavaScript library provides layout algorithms for laying out components. A component is an abstraction; it can be implemented in many ways, for example as items in a HTML5 Canvas drawing or as HTML elements. The jLayout library allows you to focus on drawing the individual components i ......

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] ......
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