大约有 15,000 项符合查询结果（耗时：0.0259秒） [XML]
App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...杂的运算，如求乘方、方根及三角函数的运算，可以利用开发工具中的数学函数，从现有的功能中衍生出来。图2-1 计算器的外观第一节 功能描述一、符号及术语前数：在计算过程中，居于运算符之前的那个数字；有三种情况可...
How do I load the contents of a text file into a javascript variable?
... http://localhost/foo.txt and I'd like to load it into a variable in javascript.. in groovy I would do this:
9 Answers
...
How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?
... success: function (result) {
if (result.isOk == false) alert(result.message);
},
async: false
});
}
share
|
improve this answer
|
fol...
$(document).ready equivalent without jQuery
I have a script that uses $(document).ready , but it doesn't use anything else from jQuery. I'd like to lighten it up by removing the jQuery dependency.
...
How do I correctly detect orientation change using Phonegap on iOS?
...) {
switch(window.orientation) {
case -90: case 90:
alert('landscape');
break;
default:
alert('portrait');
break;
}
}
window.addEventListener('orientationchange', doOnOrientationChange);
// Initial execution if needed
doOnOr...
BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
...的丹麦部落统一为一个王国，并引入了基督教。蓝牙技术开发者Jim Kardach于1997年提出用Bluetooth这个名词，据说他当时正在读一本名为The Long Ships的小说，讲述的就是维京人和Harald Bluetooth国王的故事。他认为蓝牙可以把各种不同的...
IRXmitter红外发射器扩展 · App Inventor 2 中文网
...
IRXmitter红外发射器扩展
下载和安装
开发动机
功能概述
使用原理
数据包模式
属性
方法
事件
使用示例
Metz电视遥控器
红外代码录制...
Detect Safari browser
... (ua.indexOf('safari') != -1) {
if (ua.indexOf('chrome') > -1) {
alert("1") // Chrome
} else {
alert("2") // Safari
}
}
share
|
improve this answer
|
follo...
PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI
...ttp://www.example.com/index.php/faq/whatever . I need a reliable way for a script to know what it's address is, so it will know what to do with the navigation. I've used mod_rewrite , as per CodeIgniter documentation.
...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the different ways to create an array:
var a = [], // these are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these...