mirror of
https://github.com/processing/processing4.git
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111 lines
2.3 KiB
XML
111 lines
2.3 KiB
XML
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<root>
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<name>join()</name>
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<category>Data</category>
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<subcategory>String Functions</subcategory>
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<usage>Web & Application</usage>
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<example>
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<image></image>
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<code>
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// works identically with float[] and String[]
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int list[] = new list[3];
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list[0] = 8;
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list[1] = 67;
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list[2] = 5;
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String formatted = join(list, ", ");
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// formatted now contains "8, 67, 5"
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// to format the number of digits used
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// the '3' means to pad with zeroes up to 3 digits
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String withzeroes = join(list, " ", 3);
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// withzeros now contains "008 067 005"
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// for floats, formatting is more complicated because
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// there are also digits after the decimal point.
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float f[] = new float[3];
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f[0] = 1.3;
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f[1] = 92.8;
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f[2] = 0.7;
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// 3 digits on the left of the decimal point
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// 2 digits to the right of the decimal point
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String zerofloats = join(f, " ", 3, 2);
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// zerofloats now contains "001.30 092.80 007.70"
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// or if you don't want to pad the left-hand side
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// a zero will say to ignore and don't pad
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String lesspadding = join(f, " ", 0, 2);
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// lesspadding now contains "1.30 92.80 7.70"
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</code>
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</example>
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<description>
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Combines an array of elements into one String.
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</description>
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<syntax>
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join(<c>anyArray</c>, <c>separator</c>)
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join(<c>intArray</c>, <c>separator</c>, <c>digits</c>)
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join(<c>floatArray</c>, <c>separator</c>, <c>left</c>, <c>right</c>)
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</syntax>
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<parameter>
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<label>array</label>
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<description>array of strings, ints, or floats</description>
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</parameter>
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<parameter>
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<label>intArray</label>
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<description>array of ints</description>
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</parameter>
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<parameter>
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<label>floatArray</label>
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<description>array of floats</description>
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</parameter>
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<parameter>
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<label>separator</label>
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<description>String: a string to be placed between each item</description>
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</parameter>
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<parameter>
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<label>digits</label>
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<description>int: number of digits to pad with zeroes</description>
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</parameter>
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<parameter>
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<label>left</label>
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<description>int: number of digits to the left of the decimal point</description>
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</parameter>
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<parameter>
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<label>right</label>
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<description>int: number of digits to the right of the decimal point</description>
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</parameter>
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<returns>String</returns>
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<related>
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split()
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</related>
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<availability>1.0</availability>
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<type>Function</type>
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<partof>Core</partof>
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<level>Extended</level>
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</root>
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