Detect if special characters are included
| The code is as follows |
Copy Code |
<script language= "javascript" type= "Text/javascript" >
var title= ' JS Determines whether the string contains a special character ~ ';
Add special characters to be validated in the regular
var vkeywords=/[' ~!@#$^&* () +=|\\\[\]\{\}:; ' \,.<>/?] /;
if (Vkeywords.test (title)) {
Console.log (' title contains special characters ');
}else{
Console.log (' title normal ');
}
</script> |
Determines whether a string contains a specific string
| The code is as follows |
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| <script language= "JavaScript" type= "Text/javascript" var title= ' JS regular judge whether the string contains a JS string ';
//Title contains JS string
var vkeywords=/js/;
//header at the beginning of JS string > JS Regular judgment String
//var vkeywords=/^js/;
//The string with the end of the title of JS > string contains JS
//var vkeywords=/js$/;
//headers at the beginning and end of JS string >js
//var vkeywords=/^js$/; if (vkeywords.test (title) {
console.log (' title contains JS string ') );
}else{
console.log (' title does not contain JS string ');
}
</script> |
