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Boolean vs tinyint(1) for boolean values in MySQL
...nged a non nullable bit(1) to a nullable tinyint(1) by using the following script:
ALTER TABLE TableName MODIFY Setting BOOLEAN null;
Then Dapper started throwing Exceptions. I tried to look at the difference before and after the script. And noticed the bit(1) had changed to tinyint(1).
I then r...
Variable name as a string in Javascript
...
var x = 2;
for(o in window){
if(window[o] === x){
alert(o);
}
}
However, I think you should do like "karim79"
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what is difference between success and .done() method of $.ajax
...efore making the request
$.ajax({
url: '...',
success: function(){
alert('AJAX successful');
}
});
// set success action just after starting the request
var jqxhr = $.ajax( "..." )
.done(function() { alert("success"); });
This change is for compatibility with jQuery 1.5's deferred obj...
How to round up a number in Javascript?
...) / Math.pow(10, rlength);
return newnumber;
}
Call the function as
alert(roundNumber(192.168,2));
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Return value in a Bash function
I am working with a bash script and I want to execute a function to print a return value:
9 Answers
...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...e-vs-queryselectorall/25. Conclusion : one should far more prefer pure javascript than jquery, and the specific functions getElementById and getElementsByClassName. The className selection can be few hundreds times slower without getElementsByClassName.
– Atrahasis
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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...系统之间依赖管理等问题，关于通信方面，淘宝目前独立开发了自己的高性 能服务框架HSF， 此框架主要解决了淘宝目前所有子系统之间的同步和异步通信(目前HSF主要用于同步场合，FutureTask方式的调用场景还比较少)。至于系统...
Parse JSON String into a Particular Object Prototype in JavaScript
... for (var prop in obj) this[prop] = obj[prop];
}
var fooObj = new Foo();
alert(fooObj.test() ); //Prints 6
// INITIALISE A NEW FOO AND PASS THE PARSED JSON OBJECT TO IT
var fooJSON = new Foo(JSON.parse('{"a":4,"b":3}'));
alert(fooJSON.test() ); //Prints 12
...
Default argument values in JavaScript functions [duplicate]
...peof(a)==='undefined') a = 10;
if (typeof(b)==='undefined') b = 20;
alert("A: "+a+"\nB: "+b);
}
//testing
func();
func(80);
func(100,200);
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Detect Click into Iframe using JavaScript
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The above script is used by me to detect clicks away from my site. Most advertising networks now serve banners in frames. If you click one and then quickly another one before you left on the first click, technically I want to know the ...