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Declaring javascript object method in constructor function vs. in prototype [duplicate]
...kCount = 0;
this.bark = function() {
barkCount++;
alert(this.name + " bark");
};
this.getBarkCount = function() {
alert(this.name + " has barked " + barkCount + " times");
};
};
Dog.prototype.wagTail = function() {
alert(this.name + " waggi...
Can I get the name of the currently running function in JavaScript?
...function '.length);
myName = myName.substr(0, myName.indexOf('('));
alert(myName);
}
Source: Javascript - get current function name.
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Get the closest number out of an array
... 122, 162, 202, 242, 282, 322, 362];
number = 112;
alert (closest (number, array));
</script>
</body>
</html>
Now keep in mind there may be scope for improved efficiency if, for example, your data items are sorted (that could be inferred from...
raw vs. html_safe vs. h to unescape html
...ct, it will prevent your string from being escaped.
<%= "<script>alert('Hello!')</script>" %>
will put:
&lt;script&gt;alert(&#x27;Hello!&#x27;)&lt;/script&gt;
into your HTML source (yay, so safe!), while:
<%= "<script>alert('Hello!')</scri...
Pure JavaScript equivalent of jQuery's $.ready() - how to call a function when the page/DOM is ready
...nt.readyState)?setTimeout('r('+f+')',9):f()}
// use like
r(function(){
alert('DOM Ready!');
});
The trick here, as explained by the original author, is that we are checking the document.readyState property. If it contains the string in (as in uninitialized and loading, the first two DOM ready ...
How to measure time taken by a function to execute
...// do something
}
var end = new Date().getTime();
var time = end - start;
alert('Execution time: ' + time);
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How do I change the value of a global variable inside of a function
...
var a = 10;
myFunction();
function myFunction(){
a = 20;
}
alert("Value of 'a' outside the function " + a); //outputs 20
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Delete first character of a string in Javascript
... of a string using substring:
var s1 = "foobar";
var s2 = s1.substring(1);
alert(s2); // shows "oobar"
To remove all 0's at the start of the string:
var s = "0000test";
while(s.charAt(0) === '0')
{
s = s.substring(1);
}
s...
Convert string with commas to array
...it on the , character;
var string = "0,1";
var array = string.split(",");
alert(array[0]);
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What's the difference between a continuation and a callback?
...inuation never returns.
Consider the function:
function add(x, y, c) {
alert("before");
c(x+y);
alert("after");
}
(I use Javascript syntax even though Javascript doesn't actually support first-class continuations because this was what you gave your examples in, and it will be more compr...