Variables — naming things
P40.text-and-numbers.04 · Audience: guest, language-pro, it-ml · Prerequisites: True / false and simple comparisons
You have already been using names — word, first, tally — without anyone
calling them what they are. On a quote sheet you write "rate" once and reuse it
down the column. This module names that habit: the variable — built up one
idea at a time.
ⓘ Concept: x = 5 means 'let x stand for 5'
x = 5 reads as "let the name x stand for 5". A good name (word_count) tells you what the value is; a bare x tells you nothing. You have already been reading names like first and word — now you know what they are called.Why it matters — Naming values is what makes code readable — a good name says what a value is — and it is the habit every later line depends on.
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🎓 Practice ladder
1 graded rung · ~5 minYour turn: price a translation job — name the word count, then reuse both the rate and the count (no retyping numbers) for a normal fee and a double-size rush fee. Press Run.
Explorer rung — name it once, reuse it
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