I have been trying to get typehead.js library to work on a dropdown list that pulls from a mysql database for a while but it has not worked. I decided to try the basics first and tried to populate the dropdown from a simple array instead of a database as shown in the typehead.js docs examples.
I created this codepen but I havent been able to get the dropdown working over there as well.
I copied the typehead.js lib to the JS section of codepen. Here is my HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Typehead</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script
src="http://code.jquery.com/jquery-3.3.1.js"
integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-3-typeahead/4.0.2/bootstrap3-typeahead.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<style>
.typeahead { z-index: 1051; }
</style>
</head>
<body>
<div id="the-basics">
<input class="typeahead" type="text" placeholder="States of USA">
</div>
<script>
var substringMatcher = function(strs) {
return function findMatches(q, cb) {
var matches, substringRegex;
// an array that will be populated with substring matches
matches = [];
// regex used to determine if a string contains the substring `q`
substrRegex = new RegExp(q, 'i');
// iterate through the pool of strings and for any string that
// contains the substring `q`, add it to the `matches` array
$.each(strs, function(i, str) {
if (substrRegex.test(str)) {
matches.push(str);
}
});
cb(matches);
};
};
var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii',
'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana',
'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota',
'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire',
'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota',
'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island',
'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
];
$('#the-basics .typeahead').typeahead({
hint: true,
highlight: true,
minLength: 1
},
{
name: 'states',
source: substringMatcher(states)
});
</script>
</body>
The drop down list does not appear at all.
Seems the copy paste script might have been broken in your case. Just import it from a CDN like this
<script src="http://twitter.github.io/typeahead.js/releases/latest/typeahead.bundle.js">
</script>
Checkout this codepen
Related
I creating a solution to a task from http://demo.seleniumeasy.com/jquery-dropdown-search-demo.html using python and selenium framework. I just want to click on every element from a dropdown list using for loop. I tried several ways and it is my final code. I am pretty sure that is not optimal and I would like to get Your feedback about how to improve this.
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.select import Select
from selenium.webdriver.remote.webelement import WebElement
from selenium.common.exceptions import NoSuchElementException
import time
def select_jquery(select_list: WebElement, elements_list: list[str]) -> None:
for element in elements_list:
select_list.click()
try:
if element == 'Blank':
element = driver.find_element(By.XPATH, "//li[#role='treeitem']")
else:
element = driver.find_element(By.XPATH, f"//li[text()='{element}']")
except NoSuchElementException:
select_list.click()
element = driver.find_element(By.XPATH, f"//li[text()='{element}']")
element.click()
time.sleep(1)
states_list = ['Alabama', 'Alaska', 'Arizona', 'Arkansas',
'California', 'Colorado', 'Connecticut',
'Delaware', 'District Of Columbia',
'Florida',
'Georgia', 'Hawaii',
'Idaho',
'Illinois', 'Indiana', 'Iowa',
'Kansas', 'Kentucky',
'Louisiana',
'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri', 'Montana',
'Nebraska', 'Nevada', 'New Hampshire', 'New Jersey', 'New Mexico', 'New York', 'North Carolina',
'North Dakota',
'Ohio', 'Oklahoma', 'Oregon',
'Pennsylvania',
'Rhode Island',
'South Carolina', 'South Dakota',
'Tennessee', 'Texas',
'Utah',
'Vermont', 'Virginia',
'Washington', 'West Virginia', 'Wisconsin', 'Wyoming']
countries_list = ['Australia', 'Bangladesh', 'Denmark', 'Hong Kong', 'Blank', 'India', 'Japan',
'Netherlands', 'New Zealand', 'South Africa', 'United States of America']
us_outlying_territories_list = ['American Samoa', 'Guam', 'Northern Mariana Islands', 'Puerto Rico',
'United States Minor Outlying Islands', 'Virgin Islands']
driver = webdriver.Chrome()
driver.get("https://demo.seleniumeasy.com/jquery-dropdown-search-demo.html")
# Drop Down with Search box
select_countries = driver.find_element(By.XPATH, "//span[#class='select2-selection select2-selection--single']")
select_jquery(select_countries, countries_list)
# Select Multiple Values
select_states = driver.find_element(By.XPATH, "//input[#class='select2-search__field']")
select_jquery(select_states, states_list)
# Drop Down with Disabled values
ABSOLUTE_XPATH = "/html[1]/body[1]/div[2]/div[1]/div[2]/div[3]/div[1]/div[2]/span[1]/span[1]/span[1]/span[1]"
select_us_territories = driver.find_element(By.XPATH, ABSOLUTE_XPATH)
select_jquery(select_us_territories, us_outlying_territories_list)
# Drop-down with Category related options
select_file = Select(driver.find_element(By.XPATH, "//select[#name='files']"))
for option in select_file.options:
option.click()
print(f"Option {option.text} clicked")
time.sleep(1)
time.sleep(5)
My thoughts:
I wanted to create a function to iterate over every element of a jquery dropdown list but I found that html //span disappears after I click on the element (it is present only when list is opened,
I couldn't find ''Select US Outlying Territories :' using relative XPATH, only absolute PATH has worked,
I didn't want to use Select objects despite the fact that they were available
'Blank' stands for white option on first dropdown list
I'm new to JS but have good knowledge in C and HTML and want to create a search box so that when I write something, a drop-down list appears with some results. I already have the code to create the animated search field (which is not mine) and the code to create this search filter list but I don't know how to "connect" them.
Here is the JS part for the search bar filter: (To use it you just need this html code
<input type="text" id="searchInput" placeholder="Search article"/> here is the fiddle: https://jsfiddle.net/c30L5esq/)
$("#searchInput").on('keyup', function() {
var searchValue = $(this).val().toUpperCase();
if(searchValue.length > 0) {
searchAndFilter(searchValue);
} else {
$("#articlesearch li").hide();
}
});
function searchAndFilter(searchTerm) {
$("#articlesearch li").each(function() {
var currentText = $(this).text().toUpperCase();
if (currentText.indexOf(searchTerm) >= 0) {
$(this).show();
} else {
$(this).hide();
}
});
}
$(document).ready(function() {
$("#articlesearch li").hide();
});
And here it is the link for the search bar fullscreen animation :
https://codepen.io/suez/pen/obpLvy/
And what I want is that when I use this search bar animation, I can actually search through a list and it will show me results that match what I typed in a dropdown.
Thank you !
$(document).ready(function() {
var list = $("#articlesearch>li");
list.hide();
$(document).on('input', "#searchInput", function() {
/* searchAndFilter($(this).val()) */
list.hide();
var searchTerm = ($(this).val() + '').toUpperCase();
if (searchTerm.length > 0) {
list.each(function() {
var currentText = $(this).text().toUpperCase();
if (currentText.indexOf(searchTerm) >= 0) {
$(this).show();
} else {
$(this).hide();
}
});
}
});
});
Jsfiddle: https://jsfiddle.net/ravinila/ghovnzty/13
I think you are looking for is autocomplete for search input. For that we have to use typeahead.js plugin. You can go with the link on the plugin and Codepen example link. There are multiple example demos in the link.
var substringMatcher = function(strs) {
return function findMatches(q, cb) {
var matches, substringRegex;
// an array that will be populated with substring matches
matches = [];
// regex used to determine if a string contains the substring `q`
substrRegex = new RegExp(q, 'i');
// iterate through the pool of strings and for any string that
// contains the substring `q`, add it to the `matches` array
$.each(strs, function(i, str) {
if (substrRegex.test(str)) {
matches.push(str);
}
});
cb(matches);
};
};
var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii',
'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana',
'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota',
'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire',
'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota',
'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island',
'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
];
$('#the-basics .typeahead').typeahead({
hint: true,
highlight: true,
minLength: 1
},
{
name: 'states',
source: substringMatcher(states)
});
<div id="the-basics">
<input class="typeahead" type="text" placeholder="States of USA">
</div>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/typeahead.js/0.11.1/typeahead.jquery.min.js"></script>
What I want to do is this: when a user starts typing in the typehead input and no matches are found it should show a message saying "no match found".
Below is the code and a plunker:
HTML
<html ng-app="ui.bootstrap.demo">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.5/angular.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.5/angular-animate.js"></script>
<script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-2.0.2.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<script type="text/ng-template" id="customTemplate.html">
<a>
<img ng-src="http://upload.wikimedia.org/wikipedia/commons/thumb/{{match.model.flag}}" width="16">
<span ng-bind-html="match.label | uibTypeaheadHighlight:query"></span>
</a>
</script>
<div class='container-fluid typeahead-demo' ng-controller="TypeaheadCtrl">
<h4>Custom templates for results</h4>
<pre>Model: {{customSelected | json}}</pre>
<input type="text" ng-model="customSelected" placeholder="Custom template" uib-typeahead="state as state.name for state in statesWithFlags | filter:{name:$viewValue}" typeahead-template-url="customTemplate.html" class="form-control" typeahead-show-hint="true" typeahead-min-length="0">
</div>
</body>
</html>
JavaScript
angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('TypeaheadCtrl', function($scope, $http) {
var _selected;
$scope.selected = undefined;
$scope.states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California', 'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii', 'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana', 'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire', 'New Jersey', 'New Mexico', 'New York', 'North Dakota', 'North Carolina', 'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island', 'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont', 'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'];
// Any function returning a promise object can be used to load values asynchronously
$scope.getLocation = function(val) {
return $http.get('//maps.googleapis.com/maps/api/geocode/json', {
params: {
address: val,
sensor: false
}
}).then(function(response){
return response.data.results.map(function(item){
return item.formatted_address;
});
});
};
$scope.ngModelOptionsSelected = function(value) {
if (arguments.length) {
_selected = value;
} else {
return _selected;
}
};
$scope.modelOptions = {
debounce: {
default: 500,
blur: 250
},
getterSetter: true
};
$scope.statesWithFlags = [{'name':'Alabama','flag':'5/5c/Flag_of_Alabama.svg/45px-Flag_of_Alabama.svg.png'},{'name':'Alaska','flag':'e/e6/Flag_of_Alaska.svg/43px-Flag_of_Alaska.svg.png'},{'name':'Arizona','flag':'9/9d/Flag_of_Arizona.svg/45px-Flag_of_Arizona.svg.png'},{'name':'Arkansas','flag':'9/9d/Flag_of_Arkansas.svg/45px-Flag_of_Arkansas.svg.png'},{'name':'California','flag':'0/01/Flag_of_California.svg/45px-Flag_of_California.svg.png'},{'name':'Colorado','flag':'4/46/Flag_of_Colorado.svg/45px-Flag_of_Colorado.svg.png'},{'name':'Connecticut','flag':'9/96/Flag_of_Connecticut.svg/39px-Flag_of_Connecticut.svg.png'},{'name':'Delaware','flag':'c/c6/Flag_of_Delaware.svg/45px-Flag_of_Delaware.svg.png'},{'name':'Florida','flag':'f/f7/Flag_of_Florida.svg/45px-Flag_of_Florida.svg.png'},{'name':'Georgia','flag':'5/54/Flag_of_Georgia_%28U.S._state%29.svg/46px-Flag_of_Georgia_%28U.S._state%29.svg.png'},{'name':'Hawaii','flag':'e/ef/Flag_of_Hawaii.svg/46px-Flag_of_Hawaii.svg.png'},{'name':'Idaho','flag':'a/a4/Flag_of_Idaho.svg/38px-Flag_of_Idaho.svg.png'},{'name':'Illinois','flag':'0/01/Flag_of_Illinois.svg/46px-Flag_of_Illinois.svg.png'},{'name':'Indiana','flag':'a/ac/Flag_of_Indiana.svg/45px-Flag_of_Indiana.svg.png'},{'name':'Iowa','flag':'a/aa/Flag_of_Iowa.svg/44px-Flag_of_Iowa.svg.png'},{'name':'Kansas','flag':'d/da/Flag_of_Kansas.svg/46px-Flag_of_Kansas.svg.png'},{'name':'Kentucky','flag':'8/8d/Flag_of_Kentucky.svg/46px-Flag_of_Kentucky.svg.png'},{'name':'Louisiana','flag':'e/e0/Flag_of_Louisiana.svg/46px-Flag_of_Louisiana.svg.png'},{'name':'Maine','flag':'3/35/Flag_of_Maine.svg/45px-Flag_of_Maine.svg.png'},{'name':'Maryland','flag':'a/a0/Flag_of_Maryland.svg/45px-Flag_of_Maryland.svg.png'},{'name':'Massachusetts','flag':'f/f2/Flag_of_Massachusetts.svg/46px-Flag_of_Massachusetts.svg.png'},{'name':'Michigan','flag':'b/b5/Flag_of_Michigan.svg/45px-Flag_of_Michigan.svg.png'},{'name':'Minnesota','flag':'b/b9/Flag_of_Minnesota.svg/46px-Flag_of_Minnesota.svg.png'},{'name':'Mississippi','flag':'4/42/Flag_of_Mississippi.svg/45px-Flag_of_Mississippi.svg.png'},{'name':'Missouri','flag':'5/5a/Flag_of_Missouri.svg/46px-Flag_of_Missouri.svg.png'},{'name':'Montana','flag':'c/cb/Flag_of_Montana.svg/45px-Flag_of_Montana.svg.png'},{'name':'Nebraska','flag':'4/4d/Flag_of_Nebraska.svg/46px-Flag_of_Nebraska.svg.png'},{'name':'Nevada','flag':'f/f1/Flag_of_Nevada.svg/45px-Flag_of_Nevada.svg.png'},{'name':'New Hampshire','flag':'2/28/Flag_of_New_Hampshire.svg/45px-Flag_of_New_Hampshire.svg.png'},{'name':'New Jersey','flag':'9/92/Flag_of_New_Jersey.svg/45px-Flag_of_New_Jersey.svg.png'},{'name':'New Mexico','flag':'c/c3/Flag_of_New_Mexico.svg/45px-Flag_of_New_Mexico.svg.png'},{'name':'New York','flag':'1/1a/Flag_of_New_York.svg/46px-Flag_of_New_York.svg.png'},{'name':'North Carolina','flag':'b/bb/Flag_of_North_Carolina.svg/45px-Flag_of_North_Carolina.svg.png'},{'name':'North Dakota','flag':'e/ee/Flag_of_North_Dakota.svg/38px-Flag_of_North_Dakota.svg.png'},{'name':'Ohio','flag':'4/4c/Flag_of_Ohio.svg/46px-Flag_of_Ohio.svg.png'},{'name':'Oklahoma','flag':'6/6e/Flag_of_Oklahoma.svg/45px-Flag_of_Oklahoma.svg.png'},{'name':'Oregon','flag':'b/b9/Flag_of_Oregon.svg/46px-Flag_of_Oregon.svg.png'},{'name':'Pennsylvania','flag':'f/f7/Flag_of_Pennsylvania.svg/45px-Flag_of_Pennsylvania.svg.png'},{'name':'Rhode Island','flag':'f/f3/Flag_of_Rhode_Island.svg/32px-Flag_of_Rhode_Island.svg.png'},{'name':'South Carolina','flag':'6/69/Flag_of_South_Carolina.svg/45px-Flag_of_South_Carolina.svg.png'},{'name':'South Dakota','flag':'1/1a/Flag_of_South_Dakota.svg/46px-Flag_of_South_Dakota.svg.png'},{'name':'Tennessee','flag':'9/9e/Flag_of_Tennessee.svg/46px-Flag_of_Tennessee.svg.png'},{'name':'Texas','flag':'f/f7/Flag_of_Texas.svg/45px-Flag_of_Texas.svg.png'},{'name':'Utah','flag':'f/f6/Flag_of_Utah.svg/45px-Flag_of_Utah.svg.png'},{'name':'Vermont','flag':'4/49/Flag_of_Vermont.svg/46px-Flag_of_Vermont.svg.png'},{'name':'Virginia','flag':'4/47/Flag_of_Virginia.svg/44px-Flag_of_Virginia.svg.png'},{'name':'Washington','flag':'5/54/Flag_of_Washington.svg/46px-Flag_of_Washington.svg.png'},{'name':'West Virginia','flag':'2/22/Flag_of_West_Virginia.svg/46px-Flag_of_West_Virginia.svg.png'},{'name':'Wisconsin','flag':'2/22/Flag_of_Wisconsin.svg/45px-Flag_of_Wisconsin.svg.png'},{'name':'Wyoming','flag':'b/bc/Flag_of_Wyoming.svg/43px-Flag_of_Wyoming.svg.png'}];
});
Here is the demo in plunker.
Use typeahead-no-results. Add the following to your input
typeahead-no-results="noResults"
Then add the following, or similar, below.
<div ng-show="noResults">
<i class="glyphicon glyphicon-remove"></i> No Match Found
</div>
I've amended your Plunkr here
I am using the same code from the typeahead example here. However if you type in a period . the dropdown will appear with matches. Is all this code above the array definition necessary? Is there an easier way to accomplish the same thing where you won't get matches for periods if there are no periods in your array?
I see the bloodhound example below it accomplishes the same thing and doesn't match periods but is it using var states to define an array and then using var states to construct a new bloodhound engine is this a mistake?
Copied code from the website:
var substringMatcher = function(strs) {
return function findMatches(q, cb) {
var matches, substringRegex;
// an array that will be populated with substring matches
matches = [];
// regex used to determine if a string contains the substring `q`
substrRegex = new RegExp(q, 'i');
// iterate through the pool of strings and for any string that
// contains the substring `q`, add it to the `matches` array
$.each(strs, function(i, str) {
if (substrRegex.test(str)) {
matches.push(str);
}
});
cb(matches);
};
};
var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii',
'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana',
'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota',
'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire',
'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota',
'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island',
'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
];
$('#the-basics .typeahead').typeahead({
hint: true,
highlight: true,
minLength: 1
},
{
name: 'states',
source: substringMatcher(states)
});
In my case I am generating an array of tags so instead of the states I am using var tags = <%= raw Tag.all.pluck(:name) %>;
You may find indexOf to be more useful than a regex for your application.
if (haystack.indexOf(needle) != -1) {
/* needle is in haystack */
}
or, case insensitively:
if (haystack.toLowerCase().indexOf(needle.toLowerCase()) != -1) {
}
something like this:
function findMatches(q, cb) {
var lq = q.toLowerCase();
var matches = [];
$.each(strs, function(i, str) {
if (str.toLowerCase().indexOf(lq) != -1) matches.push(str);
});
cb(matches);
}
So regular expressions are "complicated", and easy to get wrong. "." for instance has special meaning in regex which matches any charachter except newline in JS, so for example based on Mozilla's docs RexExp(".n", "i") would match ".n", "an", "in", "?n" and many more.
Regular expressions are difficult to get right.
#John-Hascall's suggestion is a good fix for the problem.
I have a list of states (Florida, Alabama ...) and I want to create named anchors above the first occurance of the first letter.
Letter Links
<nav>
<ul class="letters">
<li ng-repeat="letter in locations.getLetters()">
{{letter}}
</li>
</ul>
</nav>
States
<nav>
<ul class="locations">
<li ng-repeat="state in locations.states">{{state.state}}
<a ng-if="" id="{{state.state.charAt(0)}}">fgsdf</a>
<ul>
<li ng-repeat="city in state.cities">
<a href>{{city.name}}</a>
</li>
</ul>
</li>
</ul>
</nav>
I am stuck at <a ng-if="" id="{{state.state.charAt(0)}}">fgsdf</a>
I have tried ng-if="!document.getElementById(state.state.charAt(0))" and that doesn't work. Does anyone have any suggestions as to how I should go about this?
Update
I've considered using angular's built-in filters to filter the states in ngRepeat. When a user clicks A, only the states starting with A should show. This seems like a much cleaner and more intuitive approach and will improve UX.
You can try this approach
let's assume you have the input as a simple array of strings. before placing it in the controller, we can group states by the first letter of each state using a simple object (the letter is a key, the value is an array of strings)
http://jsfiddle.net/q2y93ym7/1/
html:
<body ng-app="HelloApp" ng-controller="Controller" class="container">
<div class="well">
{{letter}}
</div>
<div ng-attr-id="{{letter}}" ng-repeat="(letter,states) in letters">
<h1>{{letter}}</h1>
<h2 ng-repeat="state in states">{{state}}</h2>
<hr>
</div>
</body>
js:
angular.module('HelloApp', [])
.controller('Controller', function ($scope) {
var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California', 'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii', 'Idaho', 'Illinois Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana', 'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri', 'Montana Nebraska', 'Nevada', 'New Hampshire', 'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota', 'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania Rhode Island', 'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont', 'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyomin'];
// Let's prepare the input
var letters = $scope.letters = {};
states.forEach(function (state) {
var letter = state.charAt(0);
if (!letters[letter]) {
letters[letter] = [];
}
letters[letter].push(state);
});
})
EDIT:
As #DRobinson says, nothing guarantees keys of an Object will be sorted. therefore you can try using this great approach / instead an Object, use an array
added <h1>{{letter}}</h1>, thanks #Tony
That won't work because document is not part of the current scope.
Here's what you can do:
Controller:
$scope.elementExists = function (selector) {
return typeof $document.getElementById(selector) !== 'undefined';
}
Html:
<a ng-if="!elementExists('elementId')">Link</a>
Don't forget to add $document as a dependency of your controller.