If you are looking for a match string against the array then use regular expressions or some() method in JavaScript.
About creating a regular expression on the fly when you need it (assuming the array changes over time)
if( (new RegExp( '\\b' + array.join('\\b|\\b') + '\\b') ).test(string) ) {
alert('match');
}For browsers that support javascript version 1.6, you can use the some() method
if ( array.some(function(item){return (new RegExp('\\b'+item+'\\b')).test(string);}) ) {
alert('match');
}Array match JavaScript
Simple example code.
<!DOCTYPE html>
<html>
<body>
<script>
var str = "the word tree is in this sentence";
var arr = [];
array[0] = "dog";
array[1] = "cat";
array[2] = "bird";
array[3] = "birds can fly";
if( (new RegExp( '\\b' + arr.join('\\b|\\b') + '\\b') ).test(str) ){
console.log('Match'); }
else{
console.log('No match');
}
</script>
</body>
</html>Output:
Source: stackoverflow.com
How can I find matching values in two arrays?
Answer: Use the filter() and includes() method for it.
<script>
var a1 = ["cat", "sum","fun", "run"];
var a2 = ["bat", "cat","dog","sun", "hut", "gut"];
const intersection = a1.filter(element => a2.includes(element));
console.log(intersection)
</script>Output: [ “cat” ]
Do comment if you have any doubts or suggestions on this Js Array topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version