remove whitespace

When submitting the form, you will need to remove the spaces on both sides of the string, as follows:/*remove whitespace on both sides of a string*/String.prototype.trim=function() { return This. replace (/^\s*|\s*$/g, "");}/*Remove the left

When it comes to converting or editing image files in Linux, ImageMagick is undoubtedly one of the most well-known integrated software. It contains a complete set of command-line tools to display, convert, or copy raster or vector image files of

One. awk1. What is awkAwk is a programming language. It has the common function of the general programming language.Because the awk language has certain characteristics, such as: using the literal translation device (interpreter) does not need to

Basic data types1. Digitalint (integral type)On a 32-bit machine, the number of integers is 32 bits and the value range is 2**31-2**31-1, which is -2147483648~2147483647On a 64-bit system, the number of integers is 64 bits and the value range is -2**

First, the history of JavaScriptSlightlySecond, ECMAScriptNote: ES6 means ECMAScript 6.Although ECMAScript is an important standard, it is not the only part of JavaScript, and certainly not the only one that is standardized. In fact, a complete

Airline tickets. List method1.ls.extend (object)Inserting each element in the object into the list LS, object can be a string, a tuple and a list (the string "ABC" contains 3 tuples), which is equivalent to the combination of LS and object. Note: If

# divide list, add list ImportNumPy as NPA=[1,2]#1, get list B=[i/2 forIinchA];Print(b)#2, get B=np.array (a)/2;Print(b) # Add and subtract multiple lists, with NumPy C=np.array (a) +np.array (b) * * *Print(c)#不同长度数据放到一起, with NumPy and pandas are

One, operator1. Arithmetic operation:2. Comparison operation:3. Assignment Operation:4. Logical Operation:5. Member Arithmetic: II. Basic data types1. Digitalint (integral type)On a 32-bit machine, the number of integers is 32 bits and the

1. Modify the case(1) Title () displays each word in uppercase, with the first letter of each word capitalized. This is useful,Because you often need to treat your name as information. For example, you might want the program to treat the value Ada,

---restore content starts---Python crawler learning starting from 0I learned the Python grammar for the first time and couldn't wait to start the Python project. First contact with the crawler, is a simple crawler. Personal sense Python is very

String modificationReplace (Old,new[,count])-> strMatch is found in string with new substring, return new stringCount means replacing a few times, not specifying is replacing allThe original string is a constant, immutable. Modify the returned

Ideas:First, the key words written in a text file, each line one, the number of unlimited, how many write.Second, PHP read the keyword text, stored in an arrayThree, traverse the key word group, each use Strpos function to see the content has no

1. Formatting strings%s represents a formatted string, or a placeholder operation for a string. If a variable is not a string by itself, it is automatically converted to a string. use%f to format floating-point numbers. It can also provide the

dictionary ispythonThe unique mapping type in the language, with curly braces{}indicates that a dictionary entry is a key-value pair, and the methodkeys ()returns the list of keys for the dictionary,values ()returns a list of values for the

Find a suitable piece of code on the Web and share it with you. Copy Code code as follows: Determine if the content of the FCK is empty var oeditor = fckeditorapi.getinstance (' content '); The content here is the ID value of the FCK if (

Title: Python Implementation guess ageStep one: Achieve the simplest guessing age# pre-defined dark_knight_age = 28user_age = input (' Please guess my age: ') user_age = Int (user_age) # Converts user-entered content to integer

PHP//=============================== Time Date ===============================//y returns the last two digits of the year, Y year four digits, m month number, M month English. D Month Date number, D week a few

Connection: http://ife.baidu.com/note/detail/id/1398JS Basic Grammar Summary1. ClassificationECMAScript JS Basic grammar and standardDOM Document Object Model documentsBOM Browser Object Model Explorer2. Annotation methodStyle/ /Body Script/// //**

Tonight, I was bored to death. More than 9 o ' clock to work, just want to come back to read study, the result was nagging for an hour, I keep shouting don't chat with me, also repeatedly said. I just want to have a quiet look at books, study and

(i) object class(1) Object: is the root class of a class hierarchy. Each class uses Object as the superclass (parent class)public int hashcode () returns the hash code value of the object. Understand the address value (not the address value of the