Answers for "javascript validate that input contains certain string"

javascript string contains

var string = "foo",
    substring = "oo";

console.log(string.includes(substring));

Posted by: Guest on December-21-2019

string.contains javascript

var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
	alert("Not again");
}

Posted by: Guest on April-28-2020

javascript validate that input contains certain string

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <input type="text" id='input'>
<button type="button" onclick='btn()'>Alert</button>


<script>
function btn(){
var input=document.getElementById('input').value;
 
 var subs=[
'name','what','child','all','candy'
 ];
 for (let i = 0; i <subs.length; i++) {
     
     
 
 if(input.includes(subs[i])){
     alert("includes " + subs[i]);
 } 
 else{
   console.log('dosnt include '+ subs[i]);
 }
}
}

</script>
</body>
</html>

Posted by: Guest on October-05-2021