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I try connect with ssh2 and run script in one line command. /usr/bin/ssh2 --password ${password} -l root ${address} cd ${dir} ; python script.py But directory isn't changed. Why ? I want write with two command. It does only first command (cd) Solved Hello you should use && instead of ; and put command in " example: /usr/bin/ssh2 --password ${password} -l root ${address} "cd ${dir} && python script.py"

Can I use gulp-imagemin plugin with gulp-watch? So, I need to optimize images as soon as they are put into the folder. Here is a part of my gulpfile.js: var gulp = require('gulp'); var imagemin = require('gulp-imagemin'); var pngquant = require('imagemin-pngquant'); gulp.task('default', function() { gulp.watch('dist/images/**', function(event) { gulp.run('images'); }); }); // Image files gulp.task('images', function () { return gulp.src('src/images/*') .pipe(imagemin({ progressive: true, svgoPlugins: [{removeViewBox: false}], use: [pngquant()] })) .pipe(gulp.dest('dist/images')); }); Solved in your watch task, you're watching image changes in 'dist/images/ ' .. you should change that to **'src/images/*' Also in your image task, you're watching only for images directly in the images folder (non recu...

Here is my angular2 code. Template Component import {Component, OnInit, Input, ViewChild, ElementRef, Renderer} from '@angular/core'; export class SliderComponent implements OnInit { @ViewChild('picker') picker: ElementRef; constructor(private renderer: Renderer, private el: ElementRef) { } ngAfterViewInit() { this.renderer.setElementClass(this.picker.nativeElement, 'slider-horizontal', true); console.log(this.picker.nativeElement.offsetWidth); console.log(this.picker.nativeElement.offsetHeight); } } .slider-horizontal { width: 210px; height: 20px; } The problem is the printed values are different for each time loading. I guess this issue is due to the browser have not completed loading the div. Do you know what is the solution for this? Solved You have to schedule calls to 'offsetWidth' after rendering...

I've noticed that a non-static class can have a static constructor: public class Thing { public Thing() { Console.WriteLine("non-static"); } static Thing() { Console.WriteLine("static"); } } And when you initialize an instance of Thing the static constructor gets called first. Output: static non-static What would be the need for this? Do you use it to initialize static fields on your instance of the non-static type? Are there any things to take into consideration when using a static constructor? Solved Do you use it to initialize static fields on your instance of the non-static type? Pretty much, except that static fields (or static members of any kind) aren't associated with instances; they are associated with the type itself, regardless of whether it is a static class or a non-static class. The documentation lists some properties of static constructors, one of which is: ...