search function js code example
Example 1: js string search
var str = "This is a test sentence";
var hasTest = str.includes("test");
if(hasTest == true){
//do a thing
}
Example 2: function search in javascript array
// function to search array using for loop
function findInArray(ar, val) {
for (var i = 0,len = ar.length; i < len; i++) {
if ( ar[i] === val ) { // strict equality test
return i;
}
}
return -1;
}
// example array
var ar = ['Rudi', 'Morie', 'Halo', 'Miki', 'Mittens', 'Pumpkin'];
// test the function
alert( findInArray(ar, 'Rudi') ); // 0 (found at first element)
alert( findInArray(ar, 'Coco') ); // -1 (not found)