First-class functions/Use numbers analogously: Difference between revisions

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 As of this writing, there is no entry for jq at [[First-class functions]].
+=={{header|JavaScript}}==
+<lang javascript>const x = 2.0;
+const xi = 0.5;
+const y = 4.0;
+const yi = 0.25;
+const z = x + y;
+const zi = 1.0 / (x + y);
+const pairs = [[x, xi], [y, yi], [z, zi]];
+const testVal = 0.5;
+const multiplier = (a, b) => m => a * b * m;
+const test = () => {
+  return pairs.map(([a, b]) => {
+    const f = multiplier(a, b);
+    const result = f(testVal);
+    return `${a} * ${b} * ${testVal} = ${result}`;
+  });
+}
+test().join('\n');</lang>
+{{out}}
+<pre>
+* 0.5 * 0.5 = 0.5
+* 0.25 * 0.5 = 0.5
+* 0.16666666666666666 * 0.5 = 0.5
+</pre>
 =={{header|Julia}}==