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Handling optional parameters in javascript
...ggestions:
http://www.planetpdf.com/developer/article.asp?ContentID=testing_for_object_types_in_ja
I am not certain if this is work or homework, so I don't want to give you the answer at the moment, but the typeof will help you determine it.
...
Getting “unixtime” in Java
... platforms (and the year 2038 problem). 64-bit platforms use a larger time_t data type. Java dodged that bullet by using a long as the return for System.currentTimeMillis(). If you convert to int, you're re-introducing the year 2038 problem. See en.wikipedia.org/wiki/Year_2038_problem#Solutions
...
What is the use of the @ symbol in PHP?
...l be ignored.
If you have set a custom error handler function with set_error_handler() then it will still get called, but this custom error handler can (and should) call error_reporting() which will return 0 when the call that triggered the error was preceded by an @...
...
Android : difference between invisible and gone?
...Visibility=Gone then you have to initialize the component..like
eg Button _mButton = new Button(this);
_mButton = (Button)findViewByid(R.id.mButton);
so it will take more time as compared to Visibility = invisible.
share
...
新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...x open files等；App Level的优化如Java运行环境版本的选择，ES_HEAP_SIZE的设置，修改bulk index的queue size等，另外还设置了默认的index template，目的是更改默认的shard，replica数并将string改为not_analyzed，开启doc_values以应对elasticsearch进程OOM...
Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?
...======================
warning: Unable to read symbols from "dyld" (prefix __dyld_) (not yet mapped into memory).
warning: Unable to read symbols from "SystemConfiguration" (not yet mapped into memory).
warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/5.1 (9B1...
no new variables on left side of :=
...e is also a "short variable declaration" ( http://golang.org/ref/spec#Short_variable_declarations ) which means that in the left we need to have at least a new variable declaration for it to be correct.
You can change the second to a simple assignment statement := -> = or you can use a new varia...
How to make a class conform to a protocol in Swift?
...ataSource : NSObject, UITableViewDataSource {
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)
// Configure the cell...
...
Can I use the range operator with if statement in Swift?
...three assembly instruction:
addq $-200, %rdi
cmpq $99, %rdi
ja LBB0_1
this is exactly the same assembly code that is generated for
if statusCode >= 200 && statusCode <= 299
You can verify that with
xcrun -sdk macosx swiftc -O -emit-assembly main.swift
As of Swift 2, th...
How to filter object array based on attributes?
...<= 1000 &&
el.sqft >= 500 &&
el.num_of_beds >=2 &&
el.num_of_baths >= 2.5;
});
Live Example:
var obj = {
'homes': [{
"home_id": "1",
"price": "925",
"sqft": "1100",
"num_of_...