https://www.w3schools.com/js/js_regexp.asp https://www.w3schools.com/jsref/jsref_obj_regexp.asp backslash You should use a regular expression literal (/.../) instead of a string literal ('...'or"...") in the call toreplace. Strings have their own interpretation of backslashes th...
varpatt1=newRegExp("^(\s*\d+\s*\-\s*\d+\s*,?|\s*\d+\s*,?)+$");document.write(patt1.test("1, 2, 3-5, 6, 8, 10-12")); P.S. You can test it here:http://www.w3schools.com/js/tryit.asp?filename=tryjs_regexp_test More examples: 1 match 1-2 match -2 no...
javascript regex Share Copy link Improve this question Follow askedFeb 20, 2014 at 0:06 Kawd 4,3901111 gold badges3939 silver badges8282 bronze badges 1 Answer Sorted by: 2 Flagsgo in the second argument of theRegExpconstructor, eg
Sign In RegExr is an online tool tolearn,build, &testRegular Expressions (RegEx / RegExp). SupportsJavaScript&PHP/PCRERegEx. Results update inreal-timeas you type. Roll overa match or expression for details. Validate patterns with suites ofTests. ...
inperformance){a.performance.mark(g)}else{d(g)}})};a.ClientProfiler.profileInterval=function(g){};a.ClientProfiler.__profiled={};a.ClientProfiler.getProfiles=function(){varn=ClientProfiler,h,j=[],o,m,k;if("getEntriesByType"inperformance){h=a.performance.getEntriesByType("mark")}else{h...
How about string.replace();.– as in: var string = 'abc456'; string.replace(/\D+/,123); Find: abc Replace: 123 Before: abc456 After: 123456 w3schools – JavaScript RegExp Object But what are the actual “prizes”… Are they layer names, actual text layer content or something el...
JavaScript Strings The match() Method match() searches for a match against a regular expression. Do a global, case-insensitive, search for "ain": let text = "The rain in SPAIN stays mainly in the plain"; let result = text.match(/ain/gi); document.getEleme...
replace("Microsoft", "W3Schools"); 结果:访问W3Schools! 代码语言:javascript 代码运行次数:0 复制Cloud Studio 代码运行 var str = "The rain in SPAIN stays mainly in the plain"; var res = str.match(/ain/g); 结果: ain,ain,ain 资料来源:replace.asp match.asp 下面是一些正则表达式备忘单,您...
(the "r" in the beginning is making sure that the string is being treated as a "raw string")r"\Bain" r"ain\B"Try it » Try it » \dReturns a match where the string contains digits (numbers from 0-9)"\d"Try it » ...
表达式\d+表示“一个或多个数字”。正则表达式默认为greedy，表示它们将尽可能多地获取。此外，还有：...