Comparison of programming languages (basic instructions): Difference between revisions

Revision as of 02:22, 9 June 2022

Revision as of 22:07, 15 June 2022

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| rowspan=15 {{n/a}}

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| [[JavascriptJavaScript]]

| {{n/a}}

| {{n/a}}

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| {{code|object}}

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| [[JavascriptJavaScript]]

| {{n/a}}{{ref|string as char|[d]}}

| {{code|String}}

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|- valign="top"

| [[JavascriptJavaScript]]

| {{n/a}}

| {{n/a}}

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| [[JavascriptJavaScript]]

|

| {{n/a}}

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| rowspan=2 {{n/a}}

|-

| [[JavascriptJavaScript]]

| <code>var ''name''« = ''initial_value''»;</code> or<br /><code>let ''name''« = ''initial_value''»;</code> (since [[ECMAScript]] 2015)

| <code>const ''name'' = ''value'';</code> (since [[ECMAScript]] 2015)

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| <code>for (''type item'' : ''set'') ''instructions''</code>

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| [[JavascriptJavaScript]]

| <code>for (var ''i'' = ''first''; ''i'' <= ''last''; ''i''++) ''instructions''</code>

| Since [[EcmaScript]] 2015:<ref>{{cite web|url=https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Statements/for...of|title=for...of|work=mozilla.org|access-date=30 January 2017}}</ref>

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| <code>assert ''condition'' «: ''description''»;</code>

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| [[JavascriptJavaScript]]

| <code>try { ''instructions'' } catch (''exception'') { ''instructions''} «finally { ''instructions'' }»</code>

| {{dunno}}

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|

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| [[JavascriptJavaScript]]

| <code>yield ''value«;»''</code>

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| <code>static void Main(«string[] args») method_body</code><br />May instead return {{code|int}}.<br />(starting with C# 7.1:) May return {{code|Task}} or {{code|Task<int>}}, and if so, may be {{code|async}}.

|- valign="top"

| [[JavascriptJavaScript]]

| <code>function foo(''«parameters»'') { ''instructions'' }</code><br />or<br /><code>var foo = function (''«parameters»'') { ''instructions'' }</code><br />or<br /><code>var foo = new Function (''"«parameter»"'', ''...'', ''"«last parameter»"'' "''instructions''");</code>

| <code>function foo(''«parameters»'') { ''instructions ...'' return ''value''; }</code>

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| <code>''string'' = Float.toString<wbr/>(''float'');</code><br /><code>''string'' = Double.toString<wbr />(''double'');</code>

|-

| [[JavascriptJavaScript]]{{ref|JavaScript's technicalities|[a]}}

| colspan=2| <code>''integer'' = parseInt(''string'');</code>

| <code>''float'' = parseFloat(''string'');</code><br /><code>''float'' = new Number (''string'');</code><br /><code>''float'' = Number (''string'');</code><br /><code>''float'' = +''string;''</code>

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| [[JavascriptJavaScript]]<br /><small>[[Client-side JavaScript|Web Browser implementation]]</small>

|

| <code>document.write(''x'')</code>

|

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| [[JavascriptJavaScript]]<br /><small>[[Active Server Pages]]</small>

|

| <code>Response.Write(''x'')</code>

|

|-

| [[JavascriptJavaScript]]<br /><small>[[Windows Script Host]]</small>

| <code>''x'' = WScript.StdIn.Read(''chars'')</code><br />or<br /><code>''x'' = WScript.StdIn.ReadLine()</code>

| <code>WScript.Echo(''x'')</code><br />or<br /><code>WScript.StdOut.Write(''x'')</code><br />or<br /><code>WScript.StdOut.WriteLine(''x'')</code>

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| first argument

|-

| [[JavascriptJavaScript]]<br /><small>[[Windows Script Host]] implementation</small>

| <code>WScript.Arguments(''n'')</code>

| <code>WScript.Arguments.length</code>

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|

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| [[JavascriptJavaScript]]<br /><small>[[Windows Script Host]] implementation</small>

| <code>{{codett|WScript.CreateObject ("WScript.Shell").Run(|js}}''command'' «,&nbsp;''WindowStyle''» «,&nbsp;''isWaitOnReturn''»);</code>

| <code>WshShell.Exec(command)</code>