javascript isfloat

javascript|js| Function | Scripting JavaScript can play a big role in web programming by writing some of the most common features into JavaScript libraries. Save the following code as Common.js Class Library Features: 　　1.Trim (str)--Remove the

In js, there are N data types. Here we will introduce the commonly used data type judgment methods, including Number ). Including integer, floating point, Boolean, String, array, null, Undefined, etc. Let's take a look at one of my interview

Let's take a look at one of my interview questions. Last week in the interview, the Examiner asked me how JS to determine the data type of a variable is an array, JS typeof can not distinguish between array and Object, this is a problem of JS.

　 1. Trim (STR) -- remove spaces on both sides of the string 　　2. xmlencode (STR) -- encode the string in XML format. 　　3. showlabel (STR, STR) -- mouse prompt function (display character, prompt character) You can set the font, color, size,

Save the following code as Common. js Class library function: 1. Trim (str) -- remove spaces on both sides of the string 2. XMLEncode (str) -- encode the string in XML format. 3. ShowLabel (str, str) -- mouse prompt function (display character,

Save the following code as Common.js Class Library Features: 1.Trim (str)--Remove the spaces on either side of the string 2.XMLEncode (str)--XML encoding of strings 3.ShowLabel (STR,STR)--Mouse prompt function (display character, prompt

This article mainly introduces various javascript verification rules, involving javascript Detection Techniques for mobile phone numbers, email addresses, URLs, Chinese characters, and images, which are of reference value, for more information about

JavaScript can play a big role in web programming, writing some of the most common features into JavaScript libraries. Save the following code as Common.js Class Library Features: 1.Trim (str)--Remove the spaces on either side of the

Common javascript Regular Expression aggregation, javascript Summary of common javascript Regular Expressions /*** Check various rules ** @ param str check content * @ param cType pre-configured check rule string [* empty, check whether it is blank *

CONST REG =/^ ([0-9]+) \. ([0-9]*) $/;//determine if it is a floating pointConst ISFLOAT =function(number) {returnreg.test (number);}//remove Decimal to IntegerConst FLOATTOINT =function(Head,tail) {//head:string tail:string //head and tail are