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How to get the selected radio button’s value?
...ios[i].checked) {
// do whatever you want with the checked radio
alert(radios[i].value);
// only one radio can be logically checked, don't check the rest
break;
}
}
<label for="gender">Gender: </label>
<input type="radio" name="genderS" value="1" checked="c...
Hidden Features of JavaScript? [closed]
...t I'll take just one for you, always use === and !== instead of == and !=
alert('' == '0'); //false
alert(0 == ''); // true
alert(0 =='0'); // true
== is not transitive. If you use === it would give false for
all of these statements as expected.
...
Permutations in JavaScript?
... + this.filter('fastest').map('name'));
})
.run({async: true});
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/platform/1.3.4/platform.min.js"></script>
<script src=...
jQuery callback for multiple ajax calls
...estsCompleted({
numRequest: 3,
singleCallback: function(){
alert( "I'm the callback");
}
});
//usage in request
$.ajax({
url: '/echo/html/',
success: function(data) {
requestCallback.requestComplete(true);
}
});
$.ajax({
url: '/echo/html/',
success: f...
Get the first key name of a javascript object [duplicate]
Let's assume we have the following javascript object:
8 Answers
8
...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...re two methods of building a link that has the sole purpose of running JavaScript code. Which is better, in terms of functionality, page load speed, validation purposes, etc.?
...
Declaring abstract method in TypeScript
... abstract makeSound(input : string) : string;
move(meters) {
alert(this.name + " moved " + meters + "m.");
}
}
class Snake extends Animal {
constructor(name: string) { super(name); }
makeSound(input : string) : string {
return "sssss"+input;
}
move() {
...
Get value of a string after last slash in JavaScript
...
var str = "foo/bar/test.html";
var lastSlash = str.lastIndexOf("/");
alert(str.substring(lastSlash+1));
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Case-insensitive search
...var result = string.match(/best/i);
// result == 'BEST';
if (result){
alert('Matched');
}
Using a regular expression like that is probably the tidiest and most obvious way to do that in JavaScript, but bear in mind it is a regular expression, and thus can contain regex metacharacters. If you ...
Android Calling JavaScript functions in WebView
...ntion. This call: final Object a = new Object(); callJavaScript(mBrowser, "alert", 1, true, "abc", a); will yield to SyntaxError with Unexpected token which is not surprising when you will look at the generated js call: javascript:try{alert(,,'abc',,)}catch(error){console.error(error.message);}
...