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Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ChromeClient() {});
Uncaught ReferenceError: functionName is not defined
问题出现原因,网页的js代码没有加载完成,就调用了js方法。解决方法是在网页加载完成之后调用js方法:
myWebView.setWebViewClient(new WebViewClient() {
@Override
public void o...
How can I pass a constant value for 1 binding in multi-binding?
...>
<TextBlock.Resources>
<sys:Int32 x:Key="fixedValue">123</sys:Int32>
</TextBlock.Resources>
<TextBlock.Text>
<MultiBinding Converter="{StaticResource myConverter}">
<Binding Path="myFirst.Value" />
<Binding Source="{StaticRes...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...于处理文件系统操作的库,这一直是 C++ 语言存在的一个问题。过去,程序员必须使用本机 API 来解决此问题。通过本文您将了解一个提供安全、可移植且易用的 C++ 接口来促进文件系统操作的库:Boost Filesystem Library。
创建与...
parseInt vs unary plus, when to use which?
... '~~x',
'x>>>0',
'isNaN(x)'
];
VALUES = [
'"123"',
'"+123"',
'"-123"',
'"123.45"',
'"-123.45"',
'"12e5"',
'"12e-5"',
'"0123"',
'"0000123"',
'"0b111"',
'"0o10"',
'"0xBABE"',
'"4294967295"',
'"1...
Ruby, remove last N characters from a string?
...diomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'.delete_suffix!('123') # => "abc"
It's even significantly faster (almost 40% with the bang method) than the top answer. Here's the result of the same benchmark:
...
为什么你越努力,却越焦虑? - 杂谈 - 清泛网 - 专注C/C++及内核技术
...谈谈。如果有所疏漏偏颇,期待大家指正!
看到这个问题,我顿时有一股扑面而来的辛酸,因为我曾经在人生最该拼搏的时候,沉溺在一段不努力也不焦虑的「舒适」中。回头看看这段经历,我想我能够立刻给这个问题一个...
Getters \ setters for dummies
...ser = { /* ... object with getters and setters ... */ };
user.phone = '+1 (123) 456-7890'; // updates a database
console.log( user.areaCode ); // displays '123'
console.log( user.area ); // displays 'Anytown, USA'
This is useful for automatically doing things behind-the-scenes when a property is a...
携程遭超长宕机:内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术
...目前官方透露的信息判断,携程网站数据层、网络层均没问题,那么问题就在应用层或存储逻辑层。很可能关键性的系统部署和配置数据已被删除或篡改了。
不过,前支付宝运维团队创始人智锦撰文指出,携程网宕机很可能并...
How to convert a char array to a string?
...e we will lose some data. The possible solution is:
cout << string("123\0 123") << endl;
cout << string("123\0 123", 8) << endl;
Output is:
123
123 123
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impr...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...
A PHP version for those who need it: gist.github.com/chaoszcat/5325115#file-gistfile1-php
– Lionel Chan
Apr 6 '13 at 6:28
...