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May 27, 2025 17:40
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Simple mockup and experiment of what a "negative-space programming" assert situation can look like
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Document</title> | |
| </head> | |
| <body style="background-color: #222; color: #fff;"> | |
| <h1>Test assert everywhere</h1> | |
| <script> | |
| window.__libs__ = {}; | |
| </script> | |
| <script> | |
| (() => { | |
| function assert(/** @type {() => boolean} */ testFn, /** @type {string} */ textOnFail) { | |
| try { | |
| const isTestPass = testFn(); | |
| if (!isTestPass) throw Error(`Assert failure: NOT ${textOnFail}`); | |
| } catch (err) { | |
| console.error('[ASSERT FAILURE]', err); | |
| } | |
| } | |
| window.__libs__.assert = assert; | |
| })(); | |
| </script> | |
| <script> | |
| const { assert } = __libs__.assert; | |
| const radioValue = ''; | |
| assert(() => ['true', 'false'].some(x => x === radioValue), "a proper string version of the boolean."); | |
| // | |
| </script> | |
| </body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Document</title> | |
| </head> | |
| <body style="background-color: #222; color: #fff;"> | |
| <h1>Test assert everywhere</h1> | |
| <script> | |
| window.__libs__ = {}; | |
| </script> | |
| <script> | |
| (() => { | |
| function assertTrue(/** @type {boolean} */ condition, /** @type {string} */ textOnFail) { | |
| if (!condition) { | |
| console.error(`[ASSERT FAILURE]: NOT ${textOnFail}`); | |
| } | |
| } | |
| function assertTry(/** @type {() => boolean} */ testFn, /** @type {string} */ textOnFail) { | |
| try { | |
| const isTestPass = testFn(); | |
| if (!isTestPass) throw Error(`Assert failure: NOT ${textOnFail}`); | |
| } catch (err) { | |
| console.error('[ASSERT FAILURE]', err); | |
| } | |
| } | |
| window.__libs__.assert = { | |
| assertTrue, | |
| assertTry, | |
| } | |
| })(); | |
| </script> | |
| <script> | |
| const { assertTry } = __libs__.assert; | |
| const radioValue = ''; | |
| assertTry(() => ['true', 'false'].some(x => x === radioValue), "a proper string version of the boolean."); | |
| // | |
| </script> | |
| </body> | |
| </html> |
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