https://wiki.rixort.com/index.php?action=history&feed=atom&title=Modern_JavaScriptModern JavaScript - Revision history2026-06-04T16:12:31ZRevision history for this page on the wikiMediaWiki 1.45.3https://wiki.rixort.com/index.php?title=Modern_JavaScript&diff=1275&oldid=prevPaul at 15:57, 24 October 20222022-10-24T15:57:46Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:57, 24 October 2022</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Do not use <code>var</code> - it is not scoped to blocks (effectively it is a global variable) and it can be redefined</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Do not use <code>var</code> - it is not scoped to blocks (effectively it is a global variable) and it can be redefined</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Use <code>const</code> for values which <del style="font-weight: bold; text-decoration: none;">should </del>not change (remember that properties of the object *can* change, even though the object pointed to cannot)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Use <code>const</code> for values which <ins style="font-weight: bold; text-decoration: none;">must </ins>not change <ins style="font-weight: bold; text-decoration: none;">and which can be set on initialisation </ins>(remember that properties of the object *can* change, even though the object pointed to cannot)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Use <code>let</code> for values which may change</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Use <code>let</code> for values which may change</div></td></tr>
</table>Paulhttps://wiki.rixort.com/index.php?title=Modern_JavaScript&diff=1274&oldid=prevPaul: Created page with "== Defining variables == * Do not use <code>var</code> - it is not scoped to blocks (effectively it is a global variable) and it can be redefined * Use <code>const</code> for values which should not change (remember that properties of the object *can* change, even though the object pointed to cannot) * Use <code>let</code> for values which may change"2022-10-24T15:56:20Z<p>Created page with "== Defining variables == * Do not use <code>var</code> - it is not scoped to blocks (effectively it is a global variable) and it can be redefined * Use <code>const</code> for values which should not change (remember that properties of the object *can* change, even though the object pointed to cannot) * Use <code>let</code> for values which may change"</p>
<p><b>New page</b></p><div>== Defining variables ==<br />
<br />
* Do not use <code>var</code> - it is not scoped to blocks (effectively it is a global variable) and it can be redefined<br />
* Use <code>const</code> for values which should not change (remember that properties of the object *can* change, even though the object pointed to cannot)<br />
* Use <code>let</code> for values which may change</div>Paul