global是正則表達(dá)式對(duì)象的只讀布爾屬性。它指定是否一個(gè)特定的正則表達(dá)式進(jìn)行全局匹配。否則它使用“g”屬性創(chuàng)建。
語(yǔ)法
RegExpObject.global
下面是參數(shù)的詳細(xì)信息:
返回值:
例子:
<html><head><title>JavaScript RegExp global Property</title></head><body><script type="text/javascript"> var re = new RegExp( "string" ); if ( re.global ){ document.write("Test1 - Global property is set"); }else{ document.write("Test1 - Global property is not set"); } re = new RegExp( "string", "g" ); if ( re.global ){ document.write("<br />Test2 - Global property is set"); }else{ document.write("<br />Test2 - Global property is not set"); }</script></body></html>這將產(chǎn)生以下結(jié)果:
Test1 - Global property is not setTest2 - Global property is set
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