Use a template string which are much better than String.Format in my opinion as they do not suffer from poor indexing (wrong placeholder) issues: var text = “blah blah”; var strTest = `This is a ${text}`; console.log(strTest); If I do not know the name of the variables I need to pass in?? Then wrap in … Read more
The new interpolated string syntax is part compiler magic and part runtime classes. Let’s go through all the scenarios and see what is actually happening. var s = $”{DateTime.Now}”; This gets compiled as this: string s = string.Format(“{0}”, DateTime.Now); See Try Roslyn for details. string s = $”{DateTime.Now}”; This gets compiled as this: string s … Read more
String interpolation is a C# 6.0 feature, not one of .NET Framework 4.6. VS 2013 doesn’t support C# 6 but VS 2015 does.
Your first form did work in the VS2015 Preview: int i = 42; var s = “\{i}”; That compiled and ran for me. ReSharper complained, but that’s a different matter. For the final release of C#, it is: var s = $”{i}”;
Angular evaluates all expressions in double curly braces, converts the expression results to strings, and concatenates them with neighboring literal strings. Finally, it assigns this composite interpolated result to an element or directive/component property. — from https://angular.io/docs/ts/latest/guide/template-syntax.html#!#interpolation Property binding does not convert the expression result to a string. So if you need to bind something … Read more
It’s the minimum width to use for that field, not the maximum. Since your string is longer than the 5 characters you specify for the width, the field is extended to the length of your string. You’ll see the difference more dramatically with a longer width: var p = Process.GetCurrentProcess(); $”Process name is {p.ProcessName, 50}”.Dump(); … Read more
$(…) and other forms of substitutions are not interpolated in single-quoted strings. So if you want your date calculated, do git commit -m “Database $(date ‘+%a %M:%H %h %d %Y’)” that is, the whole message string is double-quoted to allow $(…) to be interpolated while the argument to date is in single quotes to make … Read more
Two suggestions: DataBinder.Eval string ReplaceMacro(string value, Job job) { return Regex.Replace(value, @”{(?<exp>[^}]+)}”, match => { return (System.Web.UI.DataBinder.Eval(new { Job = job }, match.Groups[“exp”].Value) ?? “”).ToString(); }); } Linq.Expression Use the Dynamic Query class provided in the MSDN LINQSamples: string ReplaceMacro(string value, Job job) { return Regex.Replace(value, @”{(?<exp>[^}]+)}”, match => { var p = Expression.Parameter(typeof(Job), “job”); … Read more
An f-string is syntax, not an object type. You can’t convert an arbitrary string to that syntax, the syntax creates a string object, not the other way around. I’m assuming you want to use user_input as a template, so just use the str.format() method on the user_input object: variable = 42 user_input = “The answer … Read more
It seems that you have missed escape for the products and query objects: $@”{{ “”name””:””{taskName}””, “”products””: [ {{“”product””: “”ndvi_image””, “”actions””: [“”mapbox””, “”processed””]}}, {{“”product””: “”true_color””, “”actions””: [“”mapbox””, “”processed””]}} ], “”recurring””:true, “”query””: {{ “”date_from””: “”{dateFromString}””, “”date_to””: “”{dateToString}””, “”aoi””: {polygon} }}, “”aoi_coverage_percentage””:90 }}”;