what indexof

Indexof () gets the position where the maximum character is created Package COM. test; public class indexoftest {public static void main (string [] ARGs) {string S1 = "heabcllllo"; string S2 = "Bcl"; system. out. println (myindexoftest (S1, S2);}

Today suddenly found that IE under the error, unsupported properties, the original IE does not support indexof. Add the following code to resolve.if (! ARRAY.PROTOTYPE.INDEXOF){Array.prototype.indexOf = function (ELT/*, from*/){var len = this.length

Array of methods Array.map ();Chestnuts:var a=[1,2,,3]; var b=a.map (function(value) {return value*value}); alert (b);"1,4,,9"The parameter is a function that has a return value return value is a new array, function calls each element of the

Replace all of them with uppercase or lowercase letters, and then compare them.The first occurrence of a substring In the indexOf object.Use toLowerCase or toUpperCase [Ctrl + A select all Note: If you need to introduce external Js, You need to

function : Split ()function : Use a specified delimiter to store a string into an arrayExample:var thestring= "jpg|bmp|gif|ico| png "; var arr=thestring.split ("|"); // arr is an array that contains the character values "JPG", "BMP", "GIF", "ico",

Course OutlineString stringsString String Common methodsStringBufferStringBuilderString strings:1. Instantiating a String objectDirect assignment String str= "Hello"; Recommend thisUse the keyword new string str1=new string ("Hello"); Open 2 spaces

Town Field Poem:The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.Learn to have a small return to feed root, willing to cast a conscience blog.

An error occurred while running the put on the foreground: Jquery.min.js?v=2.1.4:4 uncaught TypeError: (B.contenttype | | ""). IndexOf is not a function;The final check is less.Original code:$.ajax ({ Type: ' PUT ', Data:JSON.stringify

IndexOf ():var mystr= "Hello worhld!"If there is only one parameter in parentheses, the character to be looked up; Example: document.write (Mystr.indexof ("H"));If there are two parameters in parentheses, the previous one represents the character to

The purpose of IndexOf is to find the position of a word in a string LastIndexOf is also looking for words, the difference between them is the former from the string head Start looking, the latter is from the end of the string to find. Once the

The newly added API interface forEach map filter in Array in ES5 some every indexOf lastIndexOf reduce reduceRight var array = [23,48,66,2]; ForEach: loop, traversing array; no return value. Similar to for Loop array.forEach(function( value,

Copy codeThe Code is as follows:Ext. applyIf (Array. prototype ,{/*** Checks whether or not the specified object exists in the array.* @ Param {Object} o The object to check* @ Param {Number} from (Optional) The index at which to begin the search* @

1The . SUBSTRSUBSTR (start,length) indicates that a string of length is truncated from the start position. varSrc= "Images/off_1.png"; alert (Src.substr (7,3) ); The popup value is: Off2. Substringsubstring (Start,end) represents a string from start

1.join (separator): Converts an array into a separator-delimited string2.split (separator): Use a specified delimiter (separator) to store a string in an array3.indexof (): Returns the subscript of the first character of a matched substring in a

I. CharAt (index) returns the character of one index of a string.Syntax: Str.charat (index);var str= ' I am Chinese '; Console.log (Str.charat (3)); // output "Country", index number starting from 0, passing in the number 3, is to get the character

Using system; using system. collections. generic; using system. LINQ; using system. text; namespace consoleapplication1 {class program {static void main (string [] ARGs) {string L = getfilename (@ "C: \ Program Files \ maths \ All. dat "); console.

1 string MSG = "Single-knife, single-knife, single-knife, and single-knife. "; 2 // determine the number of occurrences of a large knife in the string, and the index position of each occurrence. 3 int COUNT = 0; 4 string KEYWORDS =" "; 5 Int Index =

JavaScript uses indexOf to obtain the position of the substring in the string. javascriptindexof This example describes how JavaScript uses indexOf to obtain the position of a substring in a string. Share it with you for your reference. The details

Indexof/lastindexof and lpad in Oracle -- In the indexof and lastindexof instr ('upgrade floor ', 'or', 3, 2) of PL/SQL, the source string is 'upgrade floor ', the target string is 'or', the start position is 3, and the position of the

You can use the indexOf () method to determine whether a js string contains a string.The String. prototype. indexOf method returns the position where a specified String value first appears in the String. If not,-1 is returned:Example 2The indexOf