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default.php

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  • string-builder.ts 1.69 KiB
    import * as B from 'benchmark'
    import SB from 'mol-base/utils/string-builder'
    
    export namespace Test {
        function createData(n: number) {
            const ret: string[] = [];
            for (let i = 0; i < n; i++) {
                ret[i] = '' + ((100000000 * Math.random() + 1) | 0);
            }
            return ret;
        }
    
        function build(data: string[], chunkSize: number): SB {
            const sb = SB.create(chunkSize);
            for (let i = 0, _i = data.length; i < _i; i++) {
                SB.writeSafe(sb, data[i]);
                SB.whitespace1(sb);
            }
            return sb;
        }
    
        function buildWS(data: string[], chunkSize: number): SB {
            const sb = SB.create(chunkSize);
            for (let i = 0, _i = data.length; i < _i; i++) {
                SB.writeSafe(sb, data[i] + ' ');
            }
            return sb;
        }
    
        // function naive(data: string[]) {
        //     let ret = '';
        //     for (let i = 0, _i = data.length; i < _i; i++) ret += data[i];
        //     return ret;
        // }
    
        // function join(data: string[]) {
        //     let ret = [];
        //     for (let i = 0, _i = data.length; i < _i; i++) ret[i] = data[i];
        //     return ret.join('');
        // }
    
        export function run() {
            const data = createData(26 * 100000);
    
            const N = 512;
            const suite = new B.Suite();
            suite
                // .add(`naive`, () => naive(data))
                // .add(`join`, () => join(data))
                //.add(`${N} chunks`, () => SB.getChunks(build(data, N)))
                .add(`${N} str`, () => SB.getString(build(data, N)))
                .add(`${N} str ws`, () => SB.getString(buildWS(data, N)))
                .on('cycle', (e: any) => console.log(String(e.target)))
                .run();
        }
    }
    
    Test.run();