i have the following code:
options.forEach((option) => {
return(option.get('template_name'))
})
where options contains a list of 2 maps
I expect this to return the template name, but instead I get 2
Why is this? How can I return from a forEach function in javascript?
forEach does not return. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/forEach#Return_value
Use map instead. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/map#Return_value
Also, to use map options must be an array.
Check out this example.
var options = Array.from(document.getElementById('selections').options),
newOptions = options.map(function(item){
return item.value
});
console.log(newOptions);
document.getElementById('results').insertAdjacentHTML('afterbegin', newOptions.reduce((a,b) => a.concat(`${b} `), ' '));<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>returning from forEach javascript</title>
</head>
<body>
<select id="selections">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
<div id="results"></div>
</body>
</html>Thats what a gold old for loop is good for:
for(var option of options){
return option.get("template_name");
}
Which equals:
return options[0].get("template_name");
Or getting all names:
const tnames = options.map( option => option.get("template_name") );
.map().