PHP · Theory

Generators

Theory

332/352

Generators

Don’t start Generators with jargon. Start with a Generators dry-run. That is the whole point.

Do Generators once by hand. one Generators step Arun can write from memory. Change one input. Say the new result out loud.

Skip Generators and only reciting the name of Generators shows up in lab hour.

Arun ships Generators in lab hour. That is the use case worth saying.

Don’t do this with Generators — only reciting the name of Generators. Interviewers spot it in ten seconds.

After Generators, Arun should still remember only reciting the name of Generators.

One breath for Generators, then a Generators dry-run, then only reciting the name of Generators. Sit down.

Exam tip

Say Generators in one breath, then one Generators step Arun can write from memory, then only reciting the name of Generators.

Example

<?php
// Generators
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

Generators: scores array, print avg, then high marks. Say the output.

Short notes

DefGenerators — Arun uses it for a Generators dry-run in lab hour.
RuleGenerators → one Generators step Arun can write from memory.
RememberGenerators + a .php page (lab hour).
UseGenerators in lab hour (a Generators dry-run).
TrapGenerators — only reciting the name of Generators.
ExGenerators → a Generators dry-run.

PHP · Theory

Generators

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Theory

332/352

Generators

Don’t start Generators with jargon. Start with a Generators dry-run. That is the whole point.

Do Generators once by hand. one Generators step Arun can write from memory. Change one input. Say the new result out loud.

Skip Generators and only reciting the name of Generators shows up in lab hour.

Arun ships Generators in lab hour. That is the use case worth saying.

Don’t do this with Generators — only reciting the name of Generators. Interviewers spot it in ten seconds.

After Generators, Arun should still remember only reciting the name of Generators.

One breath for Generators, then a Generators dry-run, then only reciting the name of Generators. Sit down.

Exam tip

Say Generators in one breath, then one Generators step Arun can write from memory, then only reciting the name of Generators.

Example

<?php
// Generators
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

Generators: scores array, print avg, then high marks. Say the output.

Short notes

DefGenerators — Arun uses it for a Generators dry-run in lab hour.
RuleGenerators → one Generators step Arun can write from memory.
RememberGenerators + a .php page (lab hour).
UseGenerators in lab hour (a Generators dry-run).
TrapGenerators — only reciting the name of Generators.
ExGenerators → a Generators dry-run.

Generators

Example

Short notes

Questions

Generators

Example

Short notes

Questions