Prepend zero

JavaScript performance comparison

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Testing in unknown unknown
Test Ops/sec
Slice Without Zero
 
var x, y, string;
for( x = 1000; x > 0; x -= 1 ) {
    string = x.toString();
    y = ( '0' + string ).slice( -2 );
}
 pending…
Slice With Zero
 
var x, y, string;
for( x = 1000; x > 0; x -= 1 ) {
    string = '0' + x.toString();
    y = ( '0' + string ).slice( -2 );
}
 pending…
CharAt Ternary Without Zero
 
var x, y, string;
for( x = 1000; x > 0; x -= 1 ) {
    string = x.toString();
    y = ( 1 === string.length && string.charAt( 0 ) !== "0" ) ? '0' + string : string;
}
 pending…
CharAt Ternary With Zero
 
var x, y, string;
for( x = 1000; x > 0; x -= 1 ) {
    string = '0' + x.toString();
    y = ( 1 === string.length && string.charAt( 0 ) !== "0" ) ? '0' + string : string;
}
 pending…
ParseInt Binary Without Zero
 
var x, y, string, parsed;
for( x = 1000; x > 0; x -= 1 ) {
    string = x.toString();
    y = ( 1 === string.length && ( parseInt( string, 10 ).toString() === string ) ? '0' + string : string );
}
 pending…
ParseInt Binary With Zero
 
var x, y, string, parsed;
for( x = 1000; x > 0; x -= 1 ) {
    string = '0' + x.toString();
    y = ( 1 === string.length && ( parseInt( string, 10 ).toString() === string ) ? '0' + string : string );
}
 pending…

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