numbers

int a = 10000000; a.ToString(); How do I make the output? 10,000,000 Try N0 for no decimal part: string formatted = a.ToString("N0"); // 10,000,000 You can also do String.Format: int x = 100000; string y = string.Empty; y = string.Format("{0:#,##0.##}", x); //Will output: 100,000 If you have decimal, the same code will output 2 decimal places: double x = 100000.2333; string y = string.Empty; y = string.Format("{0:#,##0.##}", x); //Will output: 100,000.23 To make comma instead of decimal use this: double x = 100000.2333; string y = string.Empty; y = string.Format(System.Globalization

Seeing this question: Is there a (built-in) way in JavaScript to check if a string is a valid number? and this: jsperf , one of the presented approaches is this (mutatis mutandis): var a = "123" var b = "123b" if ( +a === +a ) // true if ( +b === +b ) // false How does this logic work internally in JavaScript to make this possible? My question is not how to check if a string is a valid number – this is already answered here: Validate decimal numbers in JavaScript - IsNumeric() . I want to understand how the statement +a === +a works. + converts the value to a number. a gets converted to 123

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to do filter a number from a number array. but I got this errors.this a my codes. app.module.ts import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { NumberFilterPipe } from './number-filter.pipe'; import { FormsModule } from '@angular/forms'; import { StringFilterPipe } from './string-filter.pipe'; import { NumberFilterService } from './service/number-filter.service'; @NgModule({ declarations: [ AppComponent, NumberFilterPipe,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to build a loading indicator with a image sprite and I came up with this function function setBgPosition() { var c = 0; var numbers = [0, -120, -240, -360, -480, -600, -720]; function run() { Ext.get('common-spinner').setStyle('background-position', numbers[c++] + 'px 0px'); if (c so the out put is looks like this http://jsfiddle.net/TTkre/ I had to use setBgPosition(); inside else to keep this running in a loop so now my problem is how to stop this loop once I want [load finished]? 回答1: setTimeout returns a timer handle, which

I am just starting to get to know Swift but I am having a serious problem with number formatting at an extremely basic level. For example, I need to display an integer with at least 2 digits (e.g. 00, 01, 02, 03, 04, 05 ...). The normal syntax I'd expect would be something like: println(" %02i %02i %02i", var1, var2, var3); ...but I don't find any clear instruction for how to achieve this in Swift. I find it really hard to believe that I need to create a custom function to do that. The same for returning a float or double value to a fixed number of decimal places. I've found links to a couple