大约有 40,000 项符合查询结果（耗时：0.0530秒） [XML]
How to check if a variable is null or empty string or all whitespace in JavaScript?
...mpty spaces or for that matter just blank.
So while yes, "white space" encompasses more than null, spaces or blank my answer is intended to answer op's specific question. This is important because op may NOT want to catch things like tabs, for example.
...
Why did Bootstrap 3 switch to box-sizing: border-box?
...cut inside the box. (http://css-tricks.com/box-sizing/)
Also read: http://www.paulirish.com/2012/box-sizing-border-box-ftw/
share
|
improve this answer
|
follow
...
Javascript / Chrome - How to copy an object from the webkit inspector as code
...ht clicking on the object and selecting "Store as Global Variable": http://www.youtube.com/watch?v=qALFiTlVWdg
share
|
improve this answer
|
follow
|
...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...\.和\*。当然，要查找\本身，你也得用\\.
例如：unibetter\.com匹配unibetter.com，C:\\Windows匹配C:\Windows。
重复
你已经看过了前面的*,+,{2},{5,12}这几个匹配重复的方式了。下面是正则表达式中所有的限定符(指定数量的代码，例如*,{5,12...
Regex to match string containing two names in any order
...
|
show 7 more comments
110
...
How do I parse a string to a float or int?
...ed Dec 19 '08 at 1:54
Harley HolcombeHarley Holcombe
145k1515 gold badges6666 silver badges6262 bronze badges
...
How do I replace a character at a particular index in JavaScript?
...
|
show 12 more comments
100
...
Create a string with n characters
...
The for loop will be optimized by the compiler. In such cases like yours you don't need to care about optimization on your own. Trust the compiler.
BTW, if there is a way to create a string with n space characters, than it's coded the same way like you just did....
What are the most common non-BMP Unicode characters in actual use? [closed]
...codepoints, ranges outside the BMP (Basic Multilingual Plane) are the most common so far? These are the ones which require 4 bytes in UTF-8 or surrogates in UTF-16.
...
How do I filter query objects by date range in Django?
... edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Jan 12 '11 at 12:21
crodjercrodjer
...