var re = /(^|$)username=([^&]*)(&|$)/
var str ="^ username=wang"
this string can be checked and passed. Ask the master to explain what it means
var re = /(^|$)username=([^&]*)(&|$)/
var str ="^ username=wang"
this string can be checked and passed. Ask the master to explain what it means
first, '^ username=wang' cannot pass.
seems to be used to extract username parameter values from url , for example:
let reg = /(^|$)username=([^&]*)(&|$)/;
'username=wang'.match(reg)[2]; // 'wang'
'username=wang&ago=9'.match(reg)[2]; // 'wang'demand background: A background system of the company. The form page is paged with ajax. After clicking on the page, you want the current url to record the paging information, so that when you refresh the current page, the paging information will not ...
this is what I originally wrote: var s = "var a = test ; 1234678" s.replace( [ s S]*? n?$ , ); later found that there is such a code in the code: var a = : +host; 123456 var s = " tset "; test var...
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% &% &% June 4, 2018, Monday% &% cool summer,% &% have a glass of watermelon juice to cool down% &% &% today:% &% &% 1. Football league, fourth round% &% management VS security% &% Huanhua VS graduate% &% mining VS computer% &% please pay attention to re...
2 var s = 12.34567 12.34 console.log(s.replace( . d{2} , * )) 12*567 console.log(s.replace( .[^ d]{2} d+ , * )) 12.34567...
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