If statement variables and array

Question

I'm trying to dynamically show or hide an element based on the current site title. There are more than 4 pages but only using 4 as an example:

var stringTitle = window.location.pathname; 
var home1 = "/sites/xxx/pages/home.aspx";
var home2 = "/sites/xxx/employees/pages/home.aspx";
var home3 = "/sites/xxx/directory/pages/home.aspx";
var home4 = "/sites/xxx/forms/pages/home.aspx";

if (stringTitle == home1 || stringTitle == home2 || stringTitle == home3) {
    //Display Something
}

Since this could potentially be really long, is there a way I can use variables in array then use it in If statement? I tried the following but didn't work and also found out includes() doesn't work in IE:

var hmArray = [home1, home2, home3, ...];
var n = hmArray.includes(stringTitle); //true or false
if (n == 1) {
  //display stuff
}

You can still use Array.includes in IE. You just need to add the pollyfill so it'll work: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — mwilson
– mwilson, Commented Jan 18, 2019 at 20:23

imjared · Accepted Answer · 2019-01-18 19:16:51Z

1

You could use indexOf();

if (hmArray.indexOf(stringTitle) !== -1) {
  // display stuff
}

answered Jan 18, 2019 at 19:16

imjared

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1 Comment

Tamras Merin Over a year ago

I tried indexOf before but I thought it didn't work -- found out in dev tools that Chrome was not displaying the changes made -- it took few refresh / clear cache to apply the changes. Thanks

Taplar · Accepted Answer · 2019-01-18 19:20:09Z

0

You could make a polyfill for includes if you wanted.

Array.prototype.includes = Array.prototype.includes || function(value){
    return this.indexOf(value) > -1;
};

Then the browsers that have contains would use the native one, and those that don't would use yours.

answered Jan 18, 2019 at 19:20

Taplar

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