[英]Why does string.search work for some strings and not others?
[英]Why this string.search doesn't work as expected?
為什么此返回預期的0
'https://www.site.com/abc?sk=1'.search('https://www.site.com/abc?')
但這會返回-1
因為預期為0
?
'https://www.site.com/abc?sk=1'.search('https://www.site.com/abc?sk')
感謝您提供任何技巧。
因為?
在正則表達式中有特殊含義。
當您不需要正則表達式時,請改用indexOf
(適用於純字符串):
'https://www.site.com/abc?sk=1'.indexOf('https://www.site.com/abc?sk')
<script>
if('https://www.site.com/abc?sk=1'.indexOf('https://www.site.com/abc?sk')>=0){
//Do something you want
}
</script>
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