Javascript loop through an array searching for characters

Question

I have an array of string values. I'd like to loop through the array and return any values that not only match the string values, but contain the values.What would be the best approach to this?

Here is what I have so far, which is searching for the exact value.

I'm using this logic is several places to match the url. For part of the site getLocation returns /about, /services, etc... There is also an admin part which returns /adminabout, /adminservices, etc.

var getLocation = $location.$$path;
var isCustom    = ['about', 'services', 'volunteer', 'contact', 'give', 'blog'];

if(!isCustom.indexOf(getLocation) == -1){ 
  $scope.isCustom = true || false;  
}

I am sorry, its really not clear to me what exactly you are trying to do. What do you expect to happen after this code is executed? — thefourtheye
– thefourtheye, Commented Mar 19, 2015 at 13:47
If getLocation contains the slash, then it will never match any of those objects. — Bergi
– Bergi, Commented Mar 19, 2015 at 13:48

mohamedrias · Accepted Answer · 2015-03-19 15:50:07Z

2

Use a filter to get the matched elements which doesn't contain the getLocation value.

var getLocation = $location.$$path.replace('/','');
var isCustom    = ['about', 'services', 'volunteer', 'contact', 'give', 'blog'];

var matchedResult = isCustom.filter(function(value) {
    return value.indexOf(getLocation) < 0
});

As question somewhat not clear, I assume you're trying to find if a string is present in the array item.

var getLocation =$location.$$path.replace('/', ''); // assuming it to be admin
var isCustom = ["/adminabout","adminservices","about","services"]


// matches if the string is present in any part of the array item
var matchedResult = isCustom.filter(function(value) {
    return value.indexOf(getLocation) !== -1
});

console.log(matchedResult); //["/adminabout", "adminservices"]

edited Mar 19, 2015 at 15:50

answered Mar 19, 2015 at 13:47

mohamedrias

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6 Comments

byrdr Over a year ago

Thank you. Is there a way to loop over each item and see if it contains that value. Similar to string.contains?

mohamedrias Over a year ago

that's what we are doing currently. We are loopng through each item and checking if it contains the string

byrdr Over a year ago

This works well, except in my case the getlocation variable is going to be '/adminabout', with isCustom containing values like 'admin'. I've posted the answer that worked for me.

mohamedrias Over a year ago

You just need to replace / initially before checking.

mohamedrias Over a year ago

I would still prefer filter instead of manually looping through and pushing.

|

byrdr · Accepted Answer · 2015-03-19 15:01:29Z

0

I came up with a solution that matches whether or not the values in the isCustom value is contained in the getLocation value.

var searchThroughArray = (function (getLocation) {
var log = [];  
angular.forEach(isCustom, function(item, key) {
      var getLocation = $location.$$path.replace('/', '');
      if(getLocation.contains(item) == true){
        this.push(item);
    }
}, log);
if (0 < log.length){ 
    return true;
};
})();


if(searchThroughArray){
  $scope.isCustom = true; 
}else{
  $scope.isCustom = false; 
};

answered Mar 19, 2015 at 15:01

byrdr

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