10 examples of 'typescript add property to object' in JavaScript

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110function defineReturnStringProperty(obj,prop,value){
111 return 'Object.defineProperty('+obj+', "'+prop+'", {value: function() {return "' + value + '";}});';
112}
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276function createObjectProperty(name) {
277 return t.objectProperty(t.identifier(name), t.objectExpression([]));
278}
111function addProperty(object, value, observer) {
112 var key = 1;
113 while (key in object) {
114 key++;
115 }
116 object[key] = value;
117 observer(value, key, null);
118 return key;
119}
48definePropertiesFromObject(properties) {
49 Object.keys(properties).forEach(function (propertyName) {
50 Reflect.defineProperty(this, propertyName, properties[propertyName]);
51 }, this);
52}
48export function addProperty(node, property, value) {
49 return {
50 type: ADD_PROPERTY,
51 node: node,
52 property: property,
53 value: value
54 };
55}
6function add(obj, prop, val = null) {
7 var _prop = '_' + prop;
8 if (!obj.hasOwnProperty(_prop)) obj[_prop] = val;
9
10 Object.defineProperty(obj, prop, {
11 get: function() { return this[_prop]; },
12 set: function(v) {
13 if(v !== this[`_${prop}`]){
14 this.emit('change', {property:prop, oldValue: this[`_${prop}`], 'value':v});
15 this[`_${prop}`] = v;
16 }
17 },
18 enumerable: true,
19 configurable: true
20 });
21
22}
7function propertiesToObject(t, props) {
8 const keyedProps = {};
9
10 function handleSpreadProperty(node) {
11 if (typeof node.properties === 'undefined') return;
12
13 node.properties.forEach(sprop => {
14 if (t.isSpreadProperty(sprop)) {
15 throw new Error('TODO: handle spread properties in spread properties');
16 }
17
18 keyedProps[sprop.key.name] = sprop.value.value;
19 });
20 }
21
22 props.forEach(prop => {
23 if (t.isSpreadProperty(prop)) {
24 handleSpreadProperty(prop.get('argument').resolve().node);
25 } else {
26 // turn the key into a literal form
27 const key = prop.toComputedKey();
28 if (!t.isLiteral(key)) return; // probably computed
29
30 // ensure that the value is a string
31 const value = prop.get('value').resolve();
32 if (!value.isLiteral()) return;
33
34 // register property as one we'll try and autoprefix
35 keyedProps[key.value] = value.node.value;
36 }
37
38 // remove property as it'll get added later again later
39 prop.dangerouslyRemove();
40 });
41
42 return keyedProps;
43}
5function _setProperty(obj, key, value) { return obj[key] = value; }
108function property(name: string, value: string): ts.PropertyAssignment {
109 return ts.createPropertyAssignment(name, ts.createStringLiteral(value));
110}
29function objectProperty() {
30 let o = arguments[0];
31 // go through keys in the arguments
32 for (let i = 1; i < arguments.length; ++i) {
33 // if o is empty or is not an object, we can't get any property, so return undefined
34 if (empty(o) || typeof(o) !== "object") {
35 return undefined;
36 }
37 // get the next level down, which might be another object to check a property of (in which case we'll loop again)
38 // or might be the final value to return, which could itself be an object (in which case the loop will end here)
39 o = o[arguments[i]];
40 }
41 // if we get here return whatever we came up with. It might be an object or a scalar
42 return o;
43}

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