java script variable scope - Test

useful link :: https://medium.com/nodesimplified/javascript-pass-by-value-and-pass-by-reference-in-javascript-fcf10305aa9c

Test 1 :: ( Test 1 uses j.x=i.x -- doesn't work in FireFox)

<script language="javascript"> var jsLF=String.fromCharCode(10) var jsCR=String.fromCharCode(13) var jsCRLF=jsCR+jsLF var i={x:"Outer Scope"} alert("1"+jsLF+i+jsLF+i.x) /* .parentElement .nodeName */ function dummy1(i) { var i={x:"Inner Scope"},j /* y:dummy1.arguments.length */ j=dummy1.arguments[0] alert("2"+jsLF+i+jsLF+i.x) with(window)alert("3"+jsLF+i+jsLF+i.x) alert("4"+jsLF+j+jsLF+j.x) /* j=i // doesn't affect the x ??*/ j.x=i.x /* has no effect in MZ FF */ } dummy1(i) alert("5"+jsLF+i+jsLF+i.x) </script>

Test 2 :: the actual code running on this page ( Test 2 uses j=i )


<script language="javascript"> <script language="javascript"> var jsLF=String.fromCharCode(10) var jsCR=String.fromCharCode(13) var jsCRLF=jsCR+jsLF var i,m,u function initi(){window.i={x:"Outer Scope"}} function dummy0(n){alert(n+jsLF+i+jsLF+i.x)} function dummy1(i) { var i={x:"Inner Scope"},j /* y:dummy1.arguments.length */ j=dummy1.arguments[0] alert("2"+jsLF+i+jsLF+i.x) with(window)alert("3"+jsLF+i+jsLF+i.x) alert("4"+jsLF+j+jsLF+j.x) alert("Debug :"+jsLF+m) if(m!=0){j=i;alert("A")}else{j.x=i.x;alert("B")} } function demo1(a){window.m=a;initi();dummy0(1);dummy1(i);u=setTimeout('dummy0(5);clearTimeout(u);',100)} </script>

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[Eop]