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lines changed Original file line number Diff line number Diff line change
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+ let number = 0 ;
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+ let reset ;
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+
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+
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+ document . getElementById ( "removeb" ) . onclick = function ( ) {
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+ number -= 1
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+ document . getElementById ( "number" ) . textContent = number ;
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+ }
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+ document . getElementById ( "resetb" ) . onclick = function ( ) {
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+ reset = document . getElementById ( "number" ) . textContent = 0 ;
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+ number = reset ;
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+ }
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+ document . getElementById ( "addb" ) . onclick = function ( ) {
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+ number += 1
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+
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+ document . getElementById ( "number" ) . textContent = number ;
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+ }
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+ <!DOCTYPE html>
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+ < html lang ="en ">
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+ < head >
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+ < link rel ="stylesheet " href ="style.css ">
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+ < meta charset ="UTF-8 ">
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+ < meta name ="viewport " content ="width=device-width, initial-scale=1.0 ">
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+ < title > Javascript</ title >
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+ </ head >
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+ < body >
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+ < div id ="counter ">
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+ < h1 id ="number "> 0</ h1 > < br >
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+ < button id ="removeb " class ="buttons "> Remove 1</ button >
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+ < button id ="resetb " class ="buttons "> Reset</ button >
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+ < button id ="addb " class ="buttons "> Add 1</ button >
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+ < script src ="counter.js "> </ script >
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+ </ div >
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+ </ body >
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+ </ html >
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+ # counter {
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+ text-align : center;
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+ border : 10px dotted;
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+ background-color : hsl (197 , 90% , 80% );
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+
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+ }
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+ # number {
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+ font-size : 6em ;
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+ text-shadow : 6px 6px 20px ;
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+
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+
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+ }
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+ .buttons {
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+ transform : scale (2 , 2 );
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+ margin : 50px ;
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+ background-color : hsl (214 , 100% , 80% );
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+ border-radius : 10px ;
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+ box-shadow : 4px 4px 20px ;
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+
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+ }
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+ .buttons : hover {
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+ font-size : 1.05em ;
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+ }
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