尝试以任意字符串+破折号+ 8位数字的格式匹配网址:
yellow-purse-65788544
big-yellow-purse-66784500
iphone-smart-case-water-resistant-55006610
我已经构建了这个,但它不起作用:
new RegExp(/^[a-z][A-Z]-\d{8}$/).test('big-yellow-purse-66784500'); // false
你能帮我修复破碎的RegExp吗?
答案 0 :(得分:0)
字符串不是完全任意的。它将是小写的虚线字母数字。
您可以使用以下正则表达式,它排除了其他答案未考虑的误报列表(详见Regex101):
^(?:[a-z0-9]+-)+\d{8}$
<强> Regex101 强>
示例构造:
document.body.textContent = /^(?:[a-z0-9]+-)+\d{8}$/.test('big-yellow-purse-66784500');
&#13;
答案 1 :(得分:0)
试试这个:
/^([a-zA-Z]*-)+\d{8}$/.test("iphone-smart-case-water-resistant-55006610");
答案 2 :(得分:0)
你的字符串有几个破折号( - ),但正则表达式只有最后一个,试试这个:
/^[a-z-]+-\d{8}$/im
Regex101演示
https://regex101.com/r/rT7xT0/1
正则表达式解释:
/^[a-z-]+-\d{8}$/im
^ assert position at start of a line
[a-z-]+ match a single character present in the list below
Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
a-z a single character in the range between a and z (case insensitive)
- the literal character -
- matches the character - literally
\d{8} match a digit [0-9]
Quantifier: {8} Exactly 8 times
$ assert position at end of a line
i modifier: insensitive. Case insensitive match (ignores case of [a-zA-Z])
m modifier: multi-line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)
<强>演示:强>
stringOne = "iphone-smart-case-water-resistant-55006610";
stringtwo = "big-yellow-purse-66784500";
stringThree = "iphone-smart-case-water-resistant-55006610222222";
var myregexp = /^[a-z-]+-\d{8}$/im;
if(myregexp.test(stringOne)){
document.write(stringOne + " - TRUE<br>");
}else{
document.write(stringOne + " - FALSE<br>");
}
if(myregexp.test(stringtwo)){
document.write(stringtwo + " - TRUE<br>");
}else{
document.write(stringtwo + " - FALSE<br>");
}
if(myregexp.test(stringThree)){
document.write(stringThree + " - TRUE<br>");
}else{
document.write(stringThree + " - FALSE<br>");
}
&#13;
答案 3 :(得分:0)
如果字符串真的可以是任意的,你可以使用它:
/^.*?-\d{8}$/i
.+?
是任意字符的非贪婪匹配,\d{8}
表示匹配8位数字。
或者,您可以使用:
/^[\w-]+?-\d{8}$/i
这匹配任何数量的&#34;字&#34;或者&#39; - &#39;字符,然后是&#39; - &#39;和8位数。
这两者都与人类可读网址中常见的情况相符,其中有多个&#39; - &#39;顺序中的字符,可以通过转换类似&#34; Dollar $ ign money clip&#34;美元 - 点燃钱夹&#34;。