This method is used for passing
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a parameter by reference either to JavaScript functions or with
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Parameter
- "fieldName" - The name of the field as a string to pass. The field must already be defined using pjs.define() .
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| Only one field can be passed to pjs.refParm() at a time. |
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| When using pjs.call(), the use |
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| of pjs.refParm() |
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| is optional. When a declared field is passed as a parameter |
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| to pjs.call(), it is automatically converted to |
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| use pjs.refParm() |
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| internally. The explicit use |
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| of pjs.refParm() |
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| may be more efficient in some cases |
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Parameters
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| . |
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Return Value
An object that is used to pass the value by reference.
RPG Equivalent: PARM
Examples
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// Define fields using pjs.define( |
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). pjs.define("myField1", {type: "packed decimal", length: 7, decimals: 2}); pjs.define("myField2", {type: "packed decimal", length: 8, decimals: 3}); pjs. |
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define("myField3", {type: "packed decimal", length: 12, decimals: 5}); // Call using default parameter wrap, pjs.refParm(). pjs.call('mypgm1', myField1); // Call using explicit parameter wrap, pjs.refParm(). pjs.call('mypgm1', pjs.refParm |
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("myField1")); |
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// Define fields using pjs.define(). pjs.define("myField1", {type: "packed decimal", length: 7, decimals: 2}); pjs.define("myField2", {type: "packed decimal", length: 8, decimals: 3}); pjs.define("myField3", {type: "packed decimal", length: 12, decimals: 5}); // Call using default parameter wrap, pjs.refParm(). pjs.call(' |
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mypgm2', myField1, myField2, |
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myField3); // Call using explicit parameter wrap, pjs.refParm(). pjs.call('mypgm2', pjs.refParm("myField1"), pjs.refParm("myField2"), pjs.refParm("myField3")); |
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// Define function double() that will receive a by reference parameter to multiply by two. function double(number) { // Define temporary field number as type float. pjs.define("number", { type: 'float', length: 8, refParm: number }); // Double value of number. number = number * 2; // Because the field is by-reference, there is no need for a return statement. } // Define myNum field as type float. pjs.define("myNum", { type: 'float', length: 8, initValue: 10 }); |
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// The initial value of 10 of myNum is changed |
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to 20 after |
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the |
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function executes |
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RPG Equivalent
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double(pjs.refParm("myNum")); |