Implementation method of JavaScript calling function through string_javascript skills

The example in this article describes the implementation method of JavaScript calling functions through strings. Share it with everyone for your reference. The specific analysis is as follows:

In JavaScript, we can call a function based on a string of function names, so that we can implement dynamic function calls. We only need to pass the name of a function to call the function.

Copy code The code is as follows:

var strFun = "someFunction"; //Name of the function to be called
var strParam = "this is the parameter"; //Parameters to be passed in function
//Create the function
var fn = window[strFun];
//Call the function
fn(strParam);

The following is a detailed calling example

Copy code The code is as follows:

<br>
Function fnFooBar(strVal) {<br>
alert(strVal);<br>
              return 1;<br>
}<br>

<script><br> function fnFooBar(strVal) {<br> alert(strVal);<br> Return 1;<br> }<br> function call() {<br> var strFunctionName = document.getElementById("functionName").value;<br> var strFunctionParam = document.getElementById("functionParam").value;<br> var fn = window[strFunctionName]<br> var ret = fn(strFunctionParam);<br> }<br> </script>

I hope this article will be helpful to everyone’s JavaScript programming design.