This inArray() Method in jQuery is used to search for a specific value in an array and return its index (or -1 if not found).
Syntax:
jQuery.inArray(val, arr [, Index])
Parameters: The inArray() method accepts few parameters that are mentioned above and described below:
- val: The value to search in an array.
- arr: Any array like object.
- Index: Index of the array from which to begin search.
Return Value: It returns the index of the element in an array.
- Example 1: In this example, the inArray() method searches the element ‘geek’ in the array.
<!DOCTYPE HTML><html><head><title>JQuery | inArray() method</title><scriptsrc=</script></head><bodystyle="text-align:center;"><h1style="color: green">GeeksForGeeks</h1><pid="GFG_UP"></p><buttononclick="gfg_Run()">Click Here</button><pid="GFG_DOWN"style="color:green;"></p><script>var el_up = document.getElementById("GFG_UP");var el_down = document.getElementById("GFG_DOWN");var arr = ["GFG", "GeeksForGeeks", "Geek", "Geeks"];var val = "Geek";el_up.innerHTML = "Click on the button to "+ "search the element.<br>"+ "Array - [" + arr +"]<br>Element - '" + val + "'";function gfg_Run() {el_down.innerHTML = $.inArray(val, arr);}</script></body></html> - Output:
- Example 2: In this example, the inArray() method searches the element ‘geek’ in the array as in the previous example. But, index attribute is also passed to search the element from index 3 and return -1.
<!DOCTYPE HTML><html><head><title>JQuery | inArray() method</title><scriptsrc=</script></head><bodystyle="text-align:center;"><h1style="color: green">GeeksForGeeks</h1><pid="GFG_UP"></p><buttononclick="gfg_Run()">Click Here</button><pid="GFG_DOWN"style="color:green;"></p><script>var el_up = document.getElementById("GFG_UP");var el_down = document.getElementById("GFG_DOWN");var arr = ["GFG", "GeeksForGeeks", "Geek", "Geeks"];var val = "Geek";el_up.innerHTML = "Click on the button to search"+ "the element.<br>Array - [" + arr +"]<br>Element - '" + val + "'";function gfg_Run() {el_down.innerHTML = $.inArray(val, arr, 3);}</script></body></html> - Output:
